Multiple Choice
Negative work can be done:
A) by friction on the tyres while a car is accelerating without skidding.
B) by a spring at the bottom of an elevator shaft when it stops a falling elevator.
C) by a hand catching a ball.
D) by all of the above.
E) only by (b) and (c) above.
Correct Answer:
Verified
Correct Answer:
Verified
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