Question

a mass M is moving in a circular radius of 1 metre with a uniform speed of 5 metres per second the work done when its radius tense by 60 degrees is
a)0
b)10j
c)2.5j
d)5j

Answer 1

Answer:

At every moment the displacement is perpendicular to the force. F.ds =0

mass M is moving in a circular radius of 1 metre with a uniform speed of 5 metres per second the work done when its radius tense by 60 degrees is

a)0 ✅

b)10j

c)2.5j

d)5j