Question

if a force acting on a moving body is suddenly withdrawn at any moment then - a . it continues to move with acceleration. b . it continues to move with uniform speed . c .it stops d. none of the above.​

Answer 1

Explanation:

Two ships leave port P at the same time. One ship sails 60 km on a bearing of 030° to position A. The other ship sails 100 km on a bearing of 110° to position B.

a) Calculate:

i) the distance AB

ii) PAB

iii) the bearing of B from A.

b) Both ships took the same time, t hours, to reach their positions. The speed of the faster ship was 20km/h.

Write down:

i) the value of t

ii) the speed of the slower ship.

Answer 2

Explanation:

Frictional force arises when there is a relative motion between two surfaces. When body is stopped means there is no relative motion and no resultant force is there hence frictional force acting becomes zero.