A ball of mass m moves with speed $v$ and it strikes normally with a wall and reflected back normally, if its time of contact with wall is $t$ then find force exerted by ball on wall
A ball of mass m moves with speed $v$ and it strikes normally with a wall and reflected back normally, if its time of contact with wall is $t$ then find force exerted by ball on wall
$\frac{{2mv}}{t}$
$\frac{{mv}}{t}$
$mvt$
$\frac{{mv}}{{2t}}$
A ball of mass m moves with speed $v$ and it strikes normally with a wall and reflected back normally, if its time of contact with wall is $t$ then find force exerted by ball on wall
For exerted by ball on wall = rate of change in momentum of ball
= $\frac{{mv - ( - mv)}}{t} = \frac{{2mv}}{t}$