Three balls A
Two identical smooth balls are projected from points O and A on the horizontal ground with same speed of projection. The angle of projection in each case is 30∘.The distance between O and A is 100m. The balls collide in mid-air and return to their respective points of projection. If the coefficient of restitution is 0.7, find the speed of projection of either ball (in m/s) correct to nearest integer. (Take g = 10 ms^−2 and root 3 =1.7)
24
Sep
Two identical smooth balls are projected from points O and A on the horizontal ground with same speed of projection. The angle of projection in each case is 30∘.The distance between O and A is 100m. The balls collide in mid-air and return to their respective points of projection. If the coefficient of restitution is [...]
A particle with a mass of 1 kg a velocity of is having 10 m/s in +ve x-direction at t = 0. Forces F→1 and F→2, act on the particle whose magnitudes are changing with time according to the variation shown in Fig. The magnitude of the velocity of the particle at t = 3 s (neglect gravity effect) is found to be root 5 n . Find the value of
24
Sep
A particle with a mass of 1 kg a velocity of is having 10 m/s in +ve x-direction at t = 0. Forces F→1 and F→2, act on the particle whose magnitudes are changing with time according to the variation shown in Fig. The magnitude of the velocity of the particle at t = 3 [...]
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A particle of mass m makes an elastic head on collision with a stationery particle of mass 2m. If initial kinetic energy is moving particle is 6 j ,
A particle with a mass of 1 kg a velocity of is having 10 m/s in +ve x-direction at t = 0. Forces F→1 and F→2 ,
then during the impact ,
Three balls A ,
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 [...]
Three balls A,B and C of masses 2 kg, 4 kg and 8 kg , respectively, move along the same straight line and in the same direction, with velocities 4 m/s, 1 m/s, 3/4 m/s. If A collides with B and subse-quently B collides with C, find the velocity of ball A and ball B after collision, taking the coefficient of restitution as unity.
24
Sep
Three balls A,B and C of masses 2 kg, 4 kg and 8 kg , respectively, move along the same straight line and in the same direction, with velocities 4 m/s, 1 m/s, 3/4 m/s. If A collides with B and subse-quently B collides with C, find the velocity of ball A and ball B [...]