Question

In asending Ordr

-157‚135‚-123​

Answer 1

Answer:

Since, centripetal acceleration

a

c

=

r

v

2

=rω, because v=rω.

Work done, W=

F

⋅

r

, where

r

is the displacement vector.

As particle is under uniform circular motion,

F

⊥

r

. So, W=

F

⋅

r

=0

Answer 2

Answer:

-157 , -123 , 135

Hope it helps !