A ball of mass 150 , g moving with a velocity | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Given: Mass $m = 150 \, g = 0.15 \, kg$.Initial velocity $u = -12 \, m/s$ (taking the direction towards the bat as negative).Final velocity $v = +

Vedclass · Accepted Answer

$480$

Vedclass · Answer

(A) Given: Mass $m = 150 \, g = 0.15 \, kg$.Initial velocity $u = -12 \, m/s$ (taking the direction towards the bat as negative).Final velocity $v = +20 \, m/s$ (taking the direction away from the bat as positive).Time interval $\Delta t = 0.01 \, s$.According to Newton's Second Law of Motion,the force $F$ is given by the rate of change of momentum:$F = \frac{m(v - u)}{\Delta t}$$F = \frac{0.15 	imes (20 - (-12))}{0.01}$$F = \frac{0.15 	imes (20 + 12)}{0.01}$$F = \frac{0.15 	imes 32}{0.01}$$F = 15 	imes 32 = 480 \, N$.Therefore,the force exerted by the bat is $480 \, N$.

$A$ ball of mass $150 \, g$ moving with a velocity of $12 \, m/s$ hits a bat and returns with a velocity of $20 \, m/s$ in the opposite direction within $0.01 \, s$. The force exerted by the bat on the ball is ........... $N$.

Similar Questions

$A$ body of mass $m$ collides against a wall with a velocity $v$ and rebounds with the same speed. Its change of momentum is

$A$ time-varying force acts on a ball of mass $100 \ g$ for $2 \ ms$. The force versus time curve is shown below. If the initial speed of the ball is $10 \ m \ s^{-1}$,then the speed of the ball after $2 \ ms$ is: (in $m \ s^{-1}$)

$A$ force is applied to a body of mass $3 \ kg$ at rest on a frictionless horizontal surface, as shown in the force-time $(F-t)$ graph. The speed of the body after $1 \ s$ is: (in $m/s$)

$A$ jet of water with cross-sectional area $A$ strikes a wall at an angle $\theta$ with the normal to the wall and rebounds elastically. If the density of water is $\rho$ and the velocity is $v$,what is the force exerted on the wall?

Two billiard balls each of mass $0.05\; kg$ moving in opposite directions with speed $6\; m/s$ collide and rebound with the same speed. What is the impulse imparted to each ball due to the other (in $; Ns$)?

Vedclass Test Series

Exam Paper Generator

Online Exam Module