Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A 70 g ball B dropped from a height h0 = 9 m reaches a height h2 = 0.25 m after bouncing twice from identical 210g plates. Plate A rests directly on hard ground, while plate C rests on a foam-rubber mat. Determine (i) the coefficient of restituation between the ball and the plates, (ii) the height h1 of the ball’s first bounce.
24
Sep
A 70 g ball B dropped from a height h0 = 9 m reaches a height h2 = 0.25 m after bouncing twice from identical 210g plates. Plate A rests directly on hard ground, while plate C rests on a foam-rubber mat. Determine (i) the coefficient of restituation between the ball and the plates, (ii) [...]
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(ii) the height h1 of the ball's first bounce. ,
A 70 g ball B dropped from a height h0 = 9 m reaches a height h2 = 0.25 m after bouncing twice from identical 210g plates. Plate A rests directly on hard ground ,
while plate C rests on a foam-rubber mat. Determine (i) the coefficient of restituation between the ball and the plates ,
A particle is projected up an inclined plane of inclination beta at an elevation alpha to the horizontal. Find the ratio between tan alpha and tan beta, if the particle the plane horizontally.
24
Sep
A particle is projected up an inclined plane of inclination beta at an elevation alpha to the horizontal. Find the ratio between tan alpha and tan beta, if the particle the plane horizontally. A particle is projected up an inclined plane of inclination beta at an elevation alpha to the horizontal. Find the ratio between [...]
A body of mass 1 kg moving with velocity 1 m/s makes an elastic one dimesional collision with an identical stationary body. They are in contact for brief time 1sec. Their force of interaction increases form zero to F0 linearly in time 0.5s and decreases linearly to zero in further time 0.5 sec as shown in figure. Find the magnitude of force F0 in newton.
24
Sep
A body of mass 1 kg moving with velocity 1 m/s makes an elastic one dimesional collision with an identical stationary body. They are in contact for brief time 1sec. Their force of interaction increases form zero to F0 linearly in time 0.5s and decreases linearly to zero in further time 0.5 sec as shown [...]
A ball moving vertically downward with a speed of 10 m/s collides with a platform. The platform moves with a velocity of 5m/s in downward direction. If e = 0.8, find the speed (in m/s ) of the ball just after collision.
24
Sep
A ball moving vertically downward with a speed of 10 m/s collides with a platform. The platform moves with a velocity of 5m/s in downward direction. If e = 0.8, find the speed (in m/s ) of the ball just after collision. A ball moving vertically downward with a speed of 10 m/s collides with [...]
Two wooden plank of mass M1 = 1 kg, M2= 2.98 kg smooth surface. A bullet of mass m=20gm strikes the block M1 and pierces through it, then strikes the plank B and sticks to its. Consequently both the planks move with equal velocities. Find the percentage change in speed of the bullet when it escapes from the first block.
24
Sep
Two wooden plank of mass M1 = 1 kg, M2= 2.98 kg smooth surface. A bullet of mass m=20gm strikes the block M1 and pierces through it, then strikes the plank B and sticks to its. Consequently both the planks move with equal velocities. Find the percentage change in speed of the bullet when it [...]
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M2= 2.98 kg smooth surface. A bullet of mass m=20gm strikes the block M1 and pierces through it ,
then strikes the plank B and sticks to its. Consequently both the planks move with equal velocities. Find the percentage change in speed of the bullet when it escapes from the first block. ,
Two wooden plank of mass M1 = 1 kg ,
A staircase contains three steps each 10 cm high and 20 cm wide. What should be the minimum horizontal velocity of the ball rolling off the uppermost plane so as to hit directly the lowest plane?
24
Sep
A staircase contains three steps each 10 cm high and 20 cm wide. What should be the minimum horizontal velocity of the ball rolling off the uppermost plane so as to hit directly the lowest plane? A staircase contains three steps each 10 cm high and 20 cm wide. What should be the minimum horizontal [...]
A boy standing on a long railroad car throws a ball straight upwards. The car is moving on the horizontal road with an acceleration of 1 m/s^2 and the projection velocity in the vertical direction in 9.8 m/s.
24
Sep
A boy standing on a long railroad car throws a ball straight upwards. The car is moving on the horizontal road with an acceleration of 1 m/s^2 and the projection velocity in the vertical direction in 9.8 m/s. All the particles thrown with same initial velocity would strike the ground. a. with same speed b. [...]
A body is thrown with the velocity v0 at an angle of theta to the horizon. Determine v0 in m/s if the maximum height attained by the body is 5 m and at the highest point of its trajectory the radius of curvature is r = 3m
24
Sep
A body is thrown with the velocity v0 at an angle of theta to the horizon. Determine v0 in m/s if the maximum height attained by the body is 5 m and at the highest point of its trajectory the radius of curvature is r = 3m All the particles thrown with same initial velocity [...]
A golfer standing on level ground hits a ball with a velocity of 52 m/s at an angle theta above the horizontal. If tan theta = 5/12, then find the time for which the ball is at least 15 m above the ground.
24
Sep
A golfer standing on level ground hits a ball with a velocity of 52 m/s at an angle theta above the horizontal. If tan theta = 5/12, then find the time for which the ball is at least 15 m above the ground. A golfer standing on level ground hits a ball with a velocity [...]
A bead is free to slide down on a smooth wire rightly stretched between points A and B on a vertical circle of radius 10 m. Find the time taken by the bead to reach point B, if the bead slides from rest
24
Sep
A bead is free to slide down on a smooth wire rightly stretched between points A and B on a vertical circle of radius 10 m. Find the time taken by the bead to reach point B, if the bead slides from rest A bead is free to slide down on a smooth wire rightly [...]