Question

A particle hits the ground with a velocity of
50 m/s. If the coefficient of restitution is 0.6,
the velocity of rebound is ------- m/s.​

Answer 1

Answer:

I think you have to give the photo or any picture

Answer 2

Answer:

The velocity of rebound is $-30$ $m/s$ .

Explanation:

• The elasticity of the collision is measured by the value of the coefficient of restitution.
• For the perfect elastic collision, the value of the coefficient of restitution is $1$.

The formula for the velocity of rebound is:

$V_{rb} =-(e\times V)$

where $e$ is the value of the coefficient of restitution

           $V$ is the velocity of the particle on hitting the ground.

It is given that $e=0.6$ and $V=50$ $m/s$.

The velocity of rebound, $V_{rb} =-(0.6\times 50)$ $m/s$

                                               $=-30$ $m/s$

So, the velocity of rebound is $-30$ $m/s$. (negative sign is due to the change in the direction).