Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A plate of mass M is held at rest by firing bullets from below. Each bullet has a mass m, velocity u (up) just before hitting and stops after hitting the plate for a moment and falls. Determine the number of bullets striking the plate Fig. per unit time
22
Sep
A plate of mass M is held at rest by firing bullets from below. Each bullet has a mass m, velocity u (up) just before hitting and stops after hitting the plate for a moment and falls. Determine the number of bullets striking the plate Fig. per unit time A plate of mass M is [...]
A machine gun can fire bullets of 50 grams at a Speed of 2000 m/s, the man holding the gun can exert an average force of 200N against the gun. Calculate the maximum number of bullets which he can fire per minute.
22
Sep
A machine gun can fire bullets of 50 grams at a Speed of 2000 m/s, the man holding the gun can exert an average force of 200N against the gun. Calculate the maximum number of bullets which he can fire per minute. A machine gun can fire bullets of 50 grams at a Speed of [...]
A 3 kg steel ball strikes a wall with a speed of 10.0 m/s at an angle of 60.0 ∘ with the surfaces of the wall. The ball bounces off with the same speed and same angle. If the ball was in contact with the wall for 0.2 s, find the average force exerted by the wall on the ball.
22
Sep
A 3 kg steel ball strikes a wall with a speed of 10.0 m/s at an angle of 60.0 ∘ with the surfaces of the wall. The ball bounces off with the same speed and same angle. If the ball was in contact with the wall for 0.2 s, find the average force exerted by [...]
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find the velocities of the particles m1 and m2 just after the string is taut. ,
the particle m1 moves with velocity v0 when the string is not taut. Neglecting fricting in all contacting surface ,
Two particles of masses m1 and m2 are connected by a light and inextensible string which passes over a fixed pulley. Initially ,
A ball of mass 1 kg is attached to an inextensible string. The ball is released from the position shown in figure. Find the impulse imparted by the string to the ball immediately after the string becomes taut.
22
Sep
A ball of mass 1 kg is attached to an inextensible string. The ball is released from the position shown in figure. Find the impulse imparted by the string to the ball immediately after the string becomes taut. find the velocities of the particles m1 and m2 just after the string is taut. the particle [...]
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find the velocities of the particles m1 and m2 just after the string is taut. ,
the particle m1 moves with velocity v0 when the string is not taut. Neglecting fricting in all contacting surface ,
Two particles of masses m1 and m2 are connected by a light and inextensible string which passes over a fixed pulley. Initially ,
Two particles of masses m1 and m2 are connected by a light and inextensible string which passes over a fixed pulley. Initially, the particle m1 moves with velocity v0 when the string is not taut. Neglecting fricting in all contacting surface, find the velocities of the particles m1 and m2 just after the string is taut.
22
Sep
Two particles of masses m1 and m2 are connected by a light and inextensible string which passes over a fixed pulley. Initially, the particle m1 moves with velocity v0 when the string is not taut. Neglecting fricting in all contacting surface, find the velocities of the particles m1 and m2 just after the string is [...]
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find the velocities of the particles m1 and m2 just after the string is taut. ,
the particle m1 moves with velocity v0 when the string is not taut. Neglecting fricting in all contacting surface ,
Two particles of masses m1 and m2 are connected by a light and inextensible string which passes over a fixed pulley. Initially ,
A sphere of mass m slides with velocity v on a frictionless surface towards a smooth inclined wall as shown in figure. If the collision with the wall is perfectly elastic, find
22
Sep
A sphere of mass m slides with velocity v on a frictionless surface towards a smooth inclined wall as shown in figure. If the collision with the wall is perfectly elastic, find A sphere of mass m slides with velocity v on a frictionless surface towards a smooth inclined wall as shown in figure. If [...]
A block of mass M has a circular cut with a frictionless surface as shown. The block rests on the horizontal frictionless surface of a fixed table. Initially the right edge of the block is at x = 0, in a co-ordinate system fixed to the table. A point mass m is released from rest at the topmost point of the path as shown and it slides down. When the mass loses contact with the block, its position is x and the velocity is v. At that instant, which of the following options is/are correct?
22
Sep
A block of mass M has a circular cut with a frictionless surface as shown. The block rests on the horizontal frictionless surface of a fixed table. Initially the right edge of the block is at x = 0, in a co-ordinate system fixed to the table. A point mass m is released from rest [...]
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A block of mass M has a circular cut with a frictionless surface as shown. The block rests on the horizontal frictionless surface of a fixed table. Initially the right edge of the block is at x = 0 ,
in a co-ordinate system fixed to the table. A point mass m is released from rest at the topmost point of the path as shown and it slides down. When the mass loses contact with the block ,
its position is x and the velocity is v. At that instant ,
which of the following options is/are correct? ,
Consider regular polygons with number of sides n = 3, 4, 5 ….. as shown in the figure. The center of mass of all the polygons is at height h from the ground. They roll on a horizontal surface about the leading vertex without slipping and sliding as depicted. The maximum increase in height of the locus of the center of mass for each polygon is Δ. Then Δ depends on n and h as
22
Sep
Consider regular polygons with number of sides n = 3, 4, 5 ….. as shown in the figure. The center of mass of all the polygons is at height h from the ground. They roll on a horizontal surface about the leading vertex without slipping and sliding as depicted. The maximum increase in height of [...]
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-a). The y-coordinate of the centre of mass of the ink in this drawing is ,
0 ) ,
0) and horizontal line (0 ,
4 ,
A) ,
and each of the two line segments is m. The mass of the ink used to draw the outer circle is 6 m. The coordinates of the centres of the different parts are: outer cicle (0 ,
Consider regular polygons with number of sides n = 3 ,
left circle (-a ,
Look at the drawing given in the figure which has been drawn with ink of uniform line-thickness. The mass of ink used to draw each of the two inner circles ,
right inner circle (a ,
vertical line (0 ,
A block of mass 2 kg is free to move along the x-axis. It at rest and from t = 0 on wards it is subjected to a time-dependent force F(t) in the x direction. The force F(t) varies with t as shown in the figure. The kinetic energy of the block after 4.5 seconds is
22
Sep
A block of mass 2 kg is free to move along the x-axis. It at rest and from t = 0 on wards it is subjected to a time-dependent force F(t) in the x direction. The force F(t) varies with t as shown in the figure. The kinetic energy of the block after 4.5 seconds [...]
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-a). The y-coordinate of the centre of mass of the ink in this drawing is ,
0 ) ,
0) and horizontal line (0 ,
A) ,
and each of the two line segments is m. The mass of the ink used to draw the outer circle is 6 m. The coordinates of the centres of the different parts are: outer cicle (0 ,
left circle (-a ,
Look at the drawing given in the figure which has been drawn with ink of uniform line-thickness. The mass of ink used to draw each of the two inner circles ,
right inner circle (a ,
vertical line (0 ,
Look at the drawing given in the figure which has been drawn with ink of uniform line-thickness. The mass of ink used to draw each of the two inner circles, and each of the two line segments is m. The mass of the ink used to draw the outer circle is 6 m. The coordinates of the centres of the different parts are: outer cicle (0,0), left circle (-a, a), right inner circle (a,a), vertical line (0,0) and horizontal line (0 ,-a). The y-coordinate of the centre of mass of the ink in this drawing is
22
Sep
Look at the drawing given in the figure which has been drawn with ink of uniform line-thickness. The mass of ink used to draw each of the two inner circles, and each of the two line segments is m. The mass of the ink used to draw the outer circle is 6 m. The coordinates [...]
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-a). The y-coordinate of the centre of mass of the ink in this drawing is ,
0 ) ,
0) and horizontal line (0 ,
A) ,
and each of the two line segments is m. The mass of the ink used to draw the outer circle is 6 m. The coordinates of the centres of the different parts are: outer cicle (0 ,
left circle (-a ,
Look at the drawing given in the figure which has been drawn with ink of uniform line-thickness. The mass of ink used to draw each of the two inner circles ,
right inner circle (a ,
vertical line (0 ,