Question

A body of mass 2 kg slides down with an

acceleration of 3 m/s2 on a rough inclined

plane having a slope of 30. The external

force required to take the same body up

the plane with the same acceleration will

be : (g

=10 m/s2)

(1) 14 N

(2) 20 N

(3) 6 N

(4) 4 N

Answer 1

14 N is the answer..