A ping - pong ball strikes a wall with a velocity of $10 m s^{- 1}$ . If the collision is perfectly elastic. Find the velocity of ball after impact ?

- 20 m s^{- 1}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

- 5 m s^{- 1}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1.0 m s^{- 1}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

- 10 m s^{- 1}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is A $- 10 m s^{- 1}$
Coefficient of restitution, $e = \frac{0 - V}{10 - 0}$
As collision is perfectly elastic, $e = 1$
$\Rightarrow V = - 10 m / s$

Suggest Corrections

Similar questions

Q. In a head on elastic collision of a heavy vehicle moving with a velocity of

10 {ms}^{- 1}

and a small stone at rest, the stone will fly away with a velocity equal to

Q. A ball of mass

10 kg

initially at rest starts moving under the influence of a constant force

50 N

. Ball covers

10 m

before colliding a heavy wall which is moving towards the ball with speed

10 m/s

as shown in figure. If force stops acting on ball just before collision and collision is perfectly elastic, find the velocity of ball after collision.

Q. A heavy steel ball of mass greater than 1 kg moving with a speed of 2

m s e c^{- 1}

collides head on with a stationary ping-pong ball of mass less than 0.1 gm. The collision is elastic. After the collision the ping-pong ball moves approximately with speed of.

Q. A ball of mass

1 k g

strikes a heavy platform, elastically, moving upwards with a velocity of

5 m / s

.The speed of the ball just before the collision is

10 m / s

downwards. Then the impulse imparted by the Platform on the ball is (e=1) :-

A heavy steel ball of mass greater than 1 kg moving with a speed of 2 $m s e c^{- 1}$ collides head on with a stationary ping-pong ball of mass less than 0.1 gm. The collision is elastic. After the collision the ping-pong ball moves approximately with speed

Join BYJU'S Learning Program

A ping - pong ball strikes a wall with a velocity of 10 ms−1. If the collision is perfectly elastic. Find the velocity of ball after impact ?

The correct option is A −10 ms−1Coefficient of restitution, e=0−V10−0As collision is perfectly elastic, e=1⇒V=−10 m/s

A ping - pong ball strikes a wall with a velocity of $10 m s^{- 1}$ . If the collision is perfectly elastic. Find the velocity of ball after impact ?

The correct option is A $- 10 m s^{- 1}$
Coefficient of restitution, $e = \frac{0 - V}{10 - 0}$
As collision is perfectly elastic, $e = 1$
$\Rightarrow V = - 10 m / s$