Author Question: Which produces more force: driving into a very massive concrete wall with no give, or having a ... (Read 42 times)

K@ · **on:** Jul 29, 2018

Which produces more force: driving into a very massive concrete wall with no give, or having a head-on collision with an identical car moving toward you at the same speed?

A) car
B) wall
C) both the same
D) need more information

Question 2

A motorcycle of mass 100 kilograms slowly rolls off the edge of a cliff and falls for three seconds before reaching the bottom of a gully. Its momentum upon hitting the ground is

A) 1,000 kg m/s.
B) 2,000 kg m/s.
C) 3,000 kg m/s.
D) 4,000 kg m/s.
E) 9,000 kg m/.