Which one of the following is true, according to Newton’s laws of motion? Ignore

Question

Which one of the following is true, according to Newton’s laws of motion? Ignore friction.

A. A sports utility vehicle (SUV) hits a stationary motorcycle. Since it is stationary, the motorcycle sustains a greater force than the SUV does.

B. A semitrailer truck crashes all the way through a wall. Since the wall collapses, the wall sustains a greater force than the truck does.

C. Sam (18 years old) and his sister (9 years old) go ice skating. They push off against each other and fly apart. Sam flies off with the greater acceleration.

D. Two astronauts on a space walk are throwing a ball back and forth between each other. In this game of catch the distance between them remains constant.

E. None of the above is true, according to the third law.

Explanation / Answer

a) same force b) less force (because it broke) c) less acceleration (sam is heavier, so less a to meet equal force) d) space walk? distance is not mentioned in 3rd law e should be the answer

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