Question

if a ball having a mass of 4 kg is rolled along a smooth surface with a uniform velocity of 750/min, be that what is the kinetic energy possessed by a ball?

Answer 1

Answer:

321J(approx)

Explanation:

mass of the ball(m)= 4kg

velocity of ball(v)= 750/min= 760/60sec

=76/6sec

We know thst kinetic energy= 1/2mv²

PUTTING ALL THE VALUES

K.E.=1/2*4*(76/6)²

=2*(5776/36)

=5776/18

= 320.88J

Answer 2

Answer:

Explanation:lf a ball having a mass of 4 kg is rolled along a smooth surface with a uniform velocity of 750 m / s what is the kinetic energy possessed by the ball