How many different masses are we going to perform this experiment with? A. 2 B.

Question

How many different masses are we going to perform this experiment with? A. 2 B. 3 C. 4 D. 5 For an object moving in a circle, even if its speed it constant, there must be a non-zero net force action on it to get it to change its direction of motion, and that means its state of motion is changing. Which of Newton's Laws tells us that if an object's state of motion is changing then there most be a non-zero net force acting on it? A. Newton's First law. B. Newton's Second Law. C. Newton's Third Law. D. Newton's Law of Universal Gravitation.

Explanation / Answer

5)

when the object is moving in a circle, there is a acceleration

as the Second law is

Force = m * a

hence , the correct option is B) Newton's second law

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