after collision will be
A bullet of mass m travelling with a speed v hits a block of mass M initially at rest and gets embedded in it. The combined system is free to move and there is no other force acting on the system. The heat generated in the process will be
29
Oct
A bullet of mass m travelling with a speed v hits a block of mass M initially at rest and gets embedded in it. The combined system is free to move and there is no other force acting on the system. The heat generated in the process will be A sphere of mass m moving [...]
A car of mass 400 kg travelling at 72 kmh crashes a truck of mass 4000 kg and travelling at 9 kmh in the same direction. The car bounces back with a speed of 18 kmh. The speed of the truck after the impact is
29
Oct
A car of mass 400 kg travelling at 72 kmh crashes a truck of mass 4000 kg and travelling at 9 kmh in the same direction. The car bounces back with a speed of 18 kmh. The speed of the truck after the impact is A sphere of mass m moving with a constant velocity [...]
A glass marble dropped from a certain height above the horizontal surface reaches the surface in time t and then continues to bounce up and down. The time in which the marble finally comes to rest is :
29
Oct
A glass marble dropped from a certain height above the horizontal surface reaches the surface in time t and then continues to bounce up and down. The time in which the marble finally comes to rest is : A sphere of mass m moving with a constant velocity u hits another stationary sphere of the [...]
Three identical spherical balls A, B and Care placed on a table as shown in the figure along a straight line. B and C are at rest initially. The ball A hits B head on with a speed of 10 m/s. Then after all collision A and B are brought to rest and C takes off with velocity of
29
Oct
Three identical spherical balls A, B and Care placed on a table as shown in the figure along a straight line. B and C are at rest initially. The ball A hits B head on with a speed of 10 m/s. Then after all collision A and B are brought to rest and C takes [...]
A ball of mass m moving at speed v makes a head on collision with an identical ball at rest. The kinetic energy of the balls is three fourth of the original kinetic energy. The coefficient of restitution is.
28
Oct
A ball of mass m moving at speed v makes a head on collision with an identical ball at rest. The kinetic energy of the balls is three fourth of the original kinetic energy. The coefficient of restitution is. A sphere of mass m moving with a constant velocity u hits another stationary sphere of [...]
Two masses ma and mb moving with velocities va and vb in opposite direction collide elastically and after the collision ma and mb move with velocities vb and va respectively. Then the ratio ma /mb is :
28
Oct
Two masses ma and mb moving with velocities va and vb in opposite direction collide elastically and after the collision ma and mb move with velocities vb and va respectively. Then the ratio ma /mb is : A sphere of mass m moving with a constant velocity u hits another stationary sphere of the same [...]
A sphere of mass m moving with a constant velocity u hits another stationary sphere of the same mass and of coefficient of restitution (e). The ratio of velocities of the two spheres, after collision will be
28
Oct
A sphere of mass m moving with a constant velocity u hits another stationary sphere of the same mass and of coefficient of restitution (e). The ratio of velocities of the two spheres, after collision will be A sphere of mass m moving with a constant velocity u hits another stationary sphere of the same [...]