Question

Which force always oppose motion??
(a) Friction
(b) Electrostatic force
(c) Magnetic force
(d) Muscular force

Answer 1

Answer:

Friction

Explanation:

Friction is a force between two surfaces that are sliding, or trying to slide, across each other. For example, when you try to push a book along the floor, friction makes this difficult. Friction always works in the direction opposite to the direction in which the object is moving, or trying to move.

Answer 2

Answer:

friction

Explanation:

it is applied on opposite side of motion