Physics
NULL
Medium
Question
Motorcycle safety helmet extends the time of collision hence decreasing the________________?
A
chance of collision
B
force acting
✓ Official correct answer
C
velocity
D
impulse
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
chance of collision
No member explanations yet for this option.
B
force acting
No member explanations yet for this option.
C
velocity
No member explanations yet for this option.
D
impulse
No member explanations yet for this option.
Explanation
By the impulse-momentum theorem, a fixed change in momentum spread over a longer collision time results in less force acting on the head — impulse itself stays roughly the same.
So the correct answer is force acting.
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