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An elevator platform is going up at a speed of 20 m/s and during its upward motion a small ball of 50 g mass, falling in downward direction, strikes the platform at speed 5 m/s. Find the speed with which the ball rebounds.
24
Sep
An elevator platform is going up at a speed of 20 m/s and during its upward motion a small ball of 50 g mass, falling in downward direction, strikes the platform at speed 5 m/s. Find the speed with which the ball rebounds. An elevator platform is going up at a speed of 20 m/s [...]
A particle is dropped from a tower in a uniform gravitational field at t = 0. The particle is blown over by a horizontal wind with constant velocity. The slope (m) of the trajectory of the particle with horizontal
24
Sep
A particle is dropped from a tower in a uniform gravitational field at t = 0. The particle is blown over by a horizontal wind with constant velocity. The slope (m) of the trajectory of the particle with horizontal All the particles thrown with same initial velocity would strike the ground. a. with same speed [...]
A particle is moving in xy plane with y = x/2 and vx = 4 – 2t. Choose the correct options. a. Initial velocities in x and y directions are negative.
24
Sep
A particle is moving in xy plane with y = x/2 and vx = 4 – 2t. Choose the correct options. a. Initial velocities in x and y directions are negative. A particle is moving in xy plane with y = x/2 and vx = 4 - 2t. Choose the correct options. a. Initial velocities [...]
N beads identical beads are resting on a smooth horizontal wire which is circular at the end with radius r=0.5m as shown in the figure. Find the minimum velocity which should be imparted to the first bead such that nth bead will fall in the tank after completing full circle in vertical plane as shown in the figure. Take all the collisions between the beads elastic (e = 1).
24
Sep
N beads identical beads are resting on a smooth horizontal wire which is circular at the end with radius r=0.5m as shown in the figure. Find the minimum velocity which should be imparted to the first bead such that nth bead will fall in the tank after completing full circle in vertical plane as shown [...]
All the particles thrown with same initial velocity would strike the ground. a. with same speed b. simultaneously c. time would be least for the particle thrown with velocity v downward i.e., particle 1
24
Sep
All the particles thrown with same initial velocity would strike the ground. a. with same speed b. simultaneously c. time would be least for the particle thrown with velocity v downward i.e., particle 1 All the particles thrown with same initial velocity would strike the ground. a. with same speed b. simultaneously c. time would [...]
A particle of mass m1 elastically collides with another stationery particle of mass m2 . Then if
24
Sep
A particle of mass m1 elastically collides with another stationery particle of mass m2 . Then if A particle of mass m1 elastically collides with another stationery particle of mass m2 . Then if September 24, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Suppose two particles 1 and 2 are projected in vertical plane simultaneously. Their angles of projection are 30 and theta, respectively, with the horizontal . Let they collide after a time t in air.
24
Sep
Suppose two particles 1 and 2 are projected in vertical plane simultaneously. Their angles of projection are 30 and theta, respectively, with the horizontal . Let they collide after a time t in air. respectively Suppose two particles 1 and 2 are projected in vertical plane simultaneously. Their angles of projection are 30 and theta [...]
Two identical blocks P and Q have mass m each. They are attached to two identical springs initially unstretched. Now the left spring (along with P) is compressed by 2 A and the right spring (along with Q) is compressed by A. Both the blocks are released simultaneously. They collide perfectly inelastically. Initially time period of both the block was T. The time period of oscillation of combined mass is
24
Sep
Two identical blocks P and Q have mass m each. They are attached to two identical springs initially unstretched. Now the left spring (along with P) is compressed by 2 A and the right spring (along with Q) is compressed by A. Both the blocks are released simultaneously. They collide perfectly inelastically. Initially time [...]
Two cities A and B are connected by a regular bus service with buses plying in either direction every T seconds. The speed of each bus is uniform and equal to vb. A cyclist cycles from A to B with
24
Sep
Two cities A and B are connected by a regular bus service with buses plying in either direction every T seconds. The speed of each bus is uniform and equal to vb. A cyclist cycles from A to B with Two cities A and B are connected by a regular bus service with buses plying [...]
Two masses A and B of 3 kg and 2 kg are connected by a long inextensible string which passes over a massless and frictionless pulley. Initially the height of both the masses from the ground is same and equal to 1 metre. When the masses are released. Mass A hits the ground and gets stuck to the ground. Consider the length of the string as large, so that the pulley does not obstruct the motion of masses A and B
24
Sep
Two masses A and B of 3 kg and 2 kg are connected by a long inextensible string which passes over a massless and frictionless pulley. Initially the height of both the masses from the ground is same and equal to 1 metre. When the masses are released. Mass A hits the ground and gets [...]