Question

An object of mass m moves with constant speed
in a circular path of radius R under the action of a
force of constant magnitude F. The kinetic energy
of object is
- FR
(2) FR
(3) 2FR
(4) 1 FR​

Answer 1

Answer:

.

Explanation:

Force F is providing the centripetal force keeping the object moving in a circular path.

F = mv²/R

FR = mv²

Hence,

Kinetic Energy(KE) = ½mv² = ½FR