Question

(c) Describe what happens to the motion of a moving object when
(i) a resultant force is applied to it in a perpendicular direction to the motion.
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Answer 1

Answer:

Explanation:

No work is done along a direction of motion if the force is perpendicular. When considering force parallel to the direction of motion, we omit the cosine term because it equals 1 which does not change the expression.