Q: An object is acted on by a retarding force of 10 N and at a particular instant its kinetic energy is 6J. The object will come to rest after it has travelled a distance of
(a) 3/5 m
(b) 5/3 m
(c) 4 m
(d) 16 m
Ans: (a)
Sol:W = ∆K.E
-10 × s = 0 -6
s = 6/10 = 3/5 m