A body of mass 10 kg about to slide down a plane inclined at an angle 20^(@) with the horizontal. What force along the plane if applied upwards will just make the body slide upwards? [ sin 20^(@) = 0.3420 ]

A body of mass 10 kg about to slide down a plane inclined at an angle

1.	A body of mass 10 kg about to slide down a plane inclined at an angle 20^(@) with the horizontal. What force along the plane if applied upwards will just make the body slide upwards? [ sin 20^(@) = 0.3420 ]
Answer» ANSWER :67.032 N