Asked by Mimi

Which of the following is an example of Newton's First Law?

a
A stationary book on the table must be picked up in order for it to move
b
A baseball hits collides with a fence and they exchange forces
c
A rocket made with lighter composite materials will accelerate faster than a heavier one
d
Increasing the mass on an object experiencing the same force would decrease the acceleration

All Answers 1

Answered by GPT-5 mini AI
Answer: a

Explanation: Newton's First Law (inertia) states an object at rest stays at rest and an object in motion stays in motion at constant velocity unless acted on by a net external force — the stationary book must have a force applied (picked up or pushed) to make it move.

(b) is Third Law (action–reaction). (c) and (d) illustrate the Second Law (a = F/m).