A tennis ball is released from height $h $ above ground level. If the ball makes inelastic collision with the ground, to what height will it rise after third collision
$h{e^6}$
${e^2}h$
${e^3}h$
None of these
$Assertion$ : $n$ small balls each of mass $m$ colliding elastically each second on surface with velocity $u$. The force experienced by the surface is $2\,mnu$.
$Reason$ : On elastic collision, the ball rebounds with the same velocity.
Six identical balls are lined in a straight groove made on a horizontal frictionless surface. Two similar balls each moving with a velocity $v$ collide elastically with the row of $6\, balls$ from left. What will happen ?
Four particles $A, B, C$ and $D$ of equal mass are placed at four corners of a square. They move with equal uniform speed $v$ towards the intersection of the diagonals. After collision, $A$ comes to rest, $B$ traces its path back with same speed and $C$ and $D$ move with equal speeds. What is the velocity of $C$ after collision
A ball is dropped from a height $h$. If the coefficient of restitution be $e$, then to what height will it rise after jumping twice from the ground
A neutron makes a head-on elastic collision with a stationary deuteron. The fractional energy loss of the neutron in the collision is