Related MCQs

• A tennis ball dropped from a height of 2 m  rebounds only 1.5 m after hitting the ground. What fraction of its energy is lost in the impact
• A neutron makes a head-on elastic collision with a stationary deuteron. The fractional energy loss of the neutron in the collision is    [AIIMS 2003]
• The kinetic energy possessed by a body of mass m moving with a velocity v  is equal to \[\frac{1}{2}m{{v}^{2}}\], provided
• The diagrams represent the potential energy U of a function of the inter-atomic distance r. Which diagram corresponds to stable molecules found in nature.
• A sphere collides with another sphere of identical mass. After collision, the two spheres move. The collision is inelastic. Then the angle between the directions of the two spheres is  [KCET 1994]
• A body of mass M moves with velocity v and collides elastically with a another body of mass m (M>>m) at rest then the velocity of body of mass m is [BCECE 2004]    
• Two bodies having same mass 40 kg are moving in opposite directions, one with a velocity of 10\[m/s\] and the other with \[7m/s.\] If they collide and move as one body, the velocity of the combination is     [Pb. PMT 2000]
• A body of mass \[{{m}_{1}}\] moving with a velocity 3 ms?1 collides with another body at rest of mass \[{{m}_{2}}.\]After collision the velocities of the two bodies are 2 ms?1 and 5ms?1 respectively along the direction of motion of \[{{m}_{1}}\] The ratio \[{{m}_{1}}/{{m}_{2}}\] is [EAMCET (Engg.) 2000]
• A body falling from a height of 10m rebounds from hard floor. If it loses 20% energy in the impact, then coefficient of restitution is  [AIIMS 2000]
• If two balls each of mass 0.06 kg moving in opposite directions with speed 4 m/s collide and rebound with the same speed, then the impulse imparted to each ball due to other is   [AFMC 1998,2001]