Physics Middle School

A. The girl kicks a ball with a force of 10 N, what is the size of the reaction force?

B. The baseball player hits the ball with a force of 20 N, what is the size of the reaction force?

C. The rockets thrusts push down with a force of 1,000 N, what is the size of the reaction force?

D. You blow a balloon up and let it go. Air pushes out to the left but the balloon moves to the right. Use Newton's Third Law to explain why this happens.

Answers

Answer 1
A. 10
B.20
C.1,000
I took the test
Answer 2

A.  The size of the reaction force is 10 N.

B.  The size of the reaction force is 20 N.

C. The size of the reaction force is 1,000 N.

D.  As every action has equal and opposite reaction, when you blow a balloon up and let it go. Air pushes out to the left but the balloon moves to the right.

What is force?

A force is an effect that tends to move a stationary object into motion, stop a moving object, alter the speed and direction of a moving object, or alter the size and shape of a body.

Newton's third law of motion states that For every action, there is an equal and opposite reaction. So,

A. The girl kicks a ball with a force of 10 N, the size of the reaction force will be 20 N.

B. The baseball player hits the ball with a force of 20 N, the size of the reaction force is 20 N.

C. The rockets thrusts push down with a force of 1,000 N,  the size of the reaction force is 1000 N.

D. According to Newton's third law of motion, For every action, there is an equal and opposite reaction. So when you  blow a balloon up and let it go. Air pushes out to the left but the balloon moves to the right which in opposite in direction and magnitude of force is equal.

Learn more about force here:

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