A cricket ball of mass 150 g is moving with a velocity of 12 m/s and is hit by a bat so that the ball is turned back with a velocity of 20 m/s. The force of the blow acts for 0.001 & on the ball. Find that force?
4800 N
5200 N
6000 N
7000 N

Question

A cricket ball of mass 150 g is moving with a velocity of 12 m/s and is hit by a bat so that the ball is turned back with a velocity of 20 m/s. The force of the blow acts for 0.001 & on the ball. Find that force?
4800 N
5200 N
6000 N
7000 N

Toppr Admin · Accepted Answer

Impulse-F-xD7-t- Change in Momentum-x21D2-xA0-Change in Momentum -mv-x2212-mu-0-15-12-x2212-0-15-x2212-20-4-8-x21D2-F-xD7-0-001-4-8-xA0-x21D2-F-4800N-xA0-Therefore- A is correct option-

A cricket ball of mass 150 g is moving with a velocity of 12 m/s and is hit by a bat so that the ball is turned back with a velocity of 20 m/s. The force of the blow acts for 0.001 & on the ball. Find that force?4800 N5200 N6000 N7000 N

Impulse=F×t= Change in Momentum⇒ Change in Momentum =mv−mu=0.15(12)−0.15(−20)=4.8⇒F×0.001=4.8 ⇒F=4800N Therefore, A is correct option.

A cricket ball of mass 150 g is moving with a velocity of 12 m/s and is hit by a bat so that the ball is turned back with a velocity of 20 m/s. The force of the blow acts for 0.001 & on the ball. Find that force?
4800 N
5200 N
6000 N
7000 N

$I m p u l s e = F \times t =$ Change in Momentum
$\Rightarrow$ Change in Momentum $= m v - m u = 0.15 (12) - 0.15 (- 20) = 4.8$
$\Rightarrow F \times 0.001 = 4.8$
$\Rightarrow F = 4800 N$
Therefore, A is correct option.