Question

Q.7)) Calcualte the kinetic energy of a solid sphere of mass 10kg and radius 20cm,rolling with a constant
speed of 1.2.m/s along a horizontal surface​

Answer 1

Answer:

k.E=1/2mv²+1/2 *I *w

=1/2mv²+1/2*2/5mr²*v/r

=1/2mv(v+2/5r)

=1/2*10*1.2(1.2+2/5*20)

=1/2*12(1.2+8)

=6*2

=12.

VENOM!