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Find the direction cosines and unit vector along the vector r→=2i→+j→+3k→.
23
Aug
Find the direction cosines and unit vector along the vector r→=2i→+j→+3k→. Find the direction cosines and unit vector along the vector r→=2i→+j→+3k→. August 23, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A body of mass m and radius r is released from rest along a smooth inclined plane of angle of inclination θ. The angular momentum of the body about the instantaneous point of contact after a time t from the instant of release is equal to
23
Aug
A body of mass m and radius r is released from rest along a smooth inclined plane of angle of inclination θ. The angular momentum of the body about the instantaneous point of contact after a time t from the instant of release is equal to A particle m starts with zero velocity along a [...]
Four forces of magnitude P, 2P, 3P and 4P act along the four sides of a square ABCD in cyclic order. Use the vector method to find the resultant force.
23
Aug
Four forces of magnitude P, 2P, 3P and 4P act along the four sides of a square ABCD in cyclic order. Use the vector method to find the resultant force. 2P 3P and 4P act along the four sides of a square ABCD in cyclic order. Use the vector method to find the resultant force. [...]
A sphere of radius R and mass M collides elastically with a cubical block of mass M and side 2R. The entire system is on a smooth horizontal ground. Given that the sphere was rolling without slipping with an angular velocity ω at the time of collision. The velocities of the sphere and the block after the collision are :
23
Aug
A sphere of radius R and mass M collides elastically with a cubical block of mass M and side 2R. The entire system is on a smooth horizontal ground. Given that the sphere was rolling without slipping with an angular velocity ω at the time of collision. The velocities of the sphere and the block [...]
A golfer takes his ball into the hole in the three strokes.The first stroke displaces the ball 4 m north , the second stroke 2 m south-east, and the third stroke 1 m south-west.What displacement would have been needed to get the ball into the hole in the first stroke ?
23
Aug
A golfer takes his ball into the hole in the three strokes.The first stroke displaces the ball 4 m north , the second stroke 2 m south-east, and the third stroke 1 m south-west.What displacement would have been needed to get the ball into the hole in the first stroke ? A golfer takes his [...]
A particle m starts with zero velocity along a line y=4d. The position of particle m varies as x=A sin omegat, At omegat=pi//2, its angular momentum with respect to the origin
23
Aug
A particle m starts with zero velocity along a line y=4d. The position of particle m varies as x=A sin omegat, At omegat=pi//2, its angular momentum with respect to the origin A particle m starts with zero velocity along a line y=4d. The position of particle m varies as x=A sin omegat At omegat=pi//2 its [...]
A car is driven eastward for a distance of 50 km, then northward for 30 km and then in a direction 30∘ east of north for 25 km.Draw a vector diagram and determine the total displacement of the car from the starting point.
23
Aug
A car is driven eastward for a distance of 50 km, then northward for 30 km and then in a direction 30∘ east of north for 25 km.Draw a vector diagram and determine the total displacement of the car from the starting point. A car is driven eastward for a distance of 50 km then [...]
When a body rolls up without sliding up an inclined plane, the frictional force is
23
Aug
When a body rolls up without sliding up an inclined plane, the frictional force is the frictional force is When a body rolls up without sliding up an inclined plane August 23, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Find the angle between a = 3 i + 3 j – 3 k and b= 2i + j + 3 k.
23
Aug
Find the angle between a = 3 i + 3 j – 3 k and b= 2i + j + 3 k. Find the angle between a = 3 i + 3 j - 3 k and b= 2i + j + 3 k. August 23, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
A solid sphere is rolling on a rough surface, whose centre of mass is at C at a certain instant. Find at that instant it has angular velocity omega. Its radius is R. Find the angular acceleration at that instant mass of sphere is m
23
Aug
A solid sphere is rolling on a rough surface, whose centre of mass is at C at a certain instant. Find at that instant it has angular velocity omega. Its radius is R. Find the angular acceleration at that instant mass of sphere is m A solid sphere is rolling on a rough surface whose [...]