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.
Options
O 30
0 20
O 10
12
Clear Response​

Answer 1

Explanation:

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.

Options

O 30

0 20

O 10

Answer 2

Answer:

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

Therefore, option a) $30 m/s$ is the correct choice.

Explanation:

Given,

The velocity of particle before collision = $50m/s$

The coefficient of restitution = $0.6$

The velocity of rebound or after collision =?

As we know,

• The coefficient of restitution is the ratio of the velocities after the collision and before the collision.

• Coefficient of restitution = $\frac{Velocity after collision}{Velocity before collision}$

After putting the given values in the equation, we get:

• $0.6 = \frac{Velocity after collision}{50}$
• Velocity after the collision = $0.6 \times 50$ = $30 m/s$

Hence, the velocity of rebound = $30m/s$.