Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
Three balls A, B and C( mA = mC= 4 mB ) are placed on a smooth horizontal surface. Ball B collides with ball C with an initial velocity v as shown in figure. Find the total number of collision between the balls (all collisions are elastic).
24
Sep
Three balls A, B and C( mA = mC= 4 mB ) are placed on a smooth horizontal surface. Ball B collides with ball C with an initial velocity v as shown in figure. Find the total number of collision between the balls (all collisions are elastic). A particle of mass m makes an elastic [...]
A bullet is fired on a fixed target. It penetrates inside the target through distance d = 3.75 cm and then stops. mass of the bullet is m = 1 kg and of the target is M = 4 kg. Now an identical bullet moving with the same velocity is fired on the identical target which is placed at rest on a frictionless horizontal surface. Then find the distance (in cm) to which the bullet will penetrate inside the target?
24
Sep
A bullet is fired on a fixed target. It penetrates inside the target through distance d = 3.75 cm and then stops. mass of the bullet is m = 1 kg and of the target is M = 4 kg. Now an identical bullet moving with the same velocity is fired on the identical target [...]
A body is projected with velocity u at an angle of projection theta with the horizontal. The direction of velocity of the body makes angle 30 with the horizontal at t = 2 s and then after 1 s it reaches the maximum height.
24
Sep
A body is projected with velocity u at an angle of projection theta with the horizontal. The direction of velocity of the body makes angle 30 with the horizontal at t = 2 s and then after 1 s it reaches the maximum height. All the particles thrown with same initial velocity would strike the [...]
A small sphere of mass m = 1 kg is moving with a velocity (4 i ^− j ^ )m/s. It hits fixed smooth wall and rebounds with velocity ( i ^ +3 j ^ )m/s. The coefficient of restitution between the sphere and the wall is n/16. Find the value of n.
24
Sep
A small sphere of mass m = 1 kg is moving with a velocity (4 i ^− j ^ )m/s. It hits fixed smooth wall and rebounds with velocity ( i ^ +3 j ^ )m/s. The coefficient of restitution between the sphere and the wall is n/16. Find the value of n. [...]
A car moves on a circular road describing equal angles about the centre in equal intervals of time. Which of the following statements about the velocity of car are not true? a. Velocity is constant. b. Magnitude of velocity is constant
24
Sep
A car moves on a circular road describing equal angles about the centre in equal intervals of time. Which of the following statements about the velocity of car are not true? a. Velocity is constant. b. Magnitude of velocity is constant All the particles thrown with same initial velocity would strike the ground. a. with [...]
A ball of mass 1 kg moving with a velocity of 5 m/s collides elastically with rough ground at an angle θ with the vertical as shown in Fig. What can be the minimum coefficient of friction if ball rebounds vertically after collision? (given tanθ = 2)
24
Sep
A ball of mass 1 kg moving with a velocity of 5 m/s collides elastically with rough ground at an angle θ with the vertical as shown in Fig. What can be the minimum coefficient of friction if ball rebounds vertically after collision? (given tanθ = 2) A particle of mass m makes an elastic [...]
A heavy particle is projected with a velocity at an angle with the horizontal into a uniform gravitational field. The slope of the trajectory of the particle varies not according to which of the following curves?
24
Sep
A heavy particle is projected with a velocity at an angle with the horizontal into a uniform gravitational field. The slope of the trajectory of the particle varies not according to which of the following curves? All the particles thrown with same initial velocity would strike the ground. a. with same speed b. simultaneously c. [...]
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 [...]