Multiple Choice
Which task requires more work?
A) lifting the 50-kg sack 2 meters
B) lifting the 25-kg sack 4 meters
C) both require the same
D) need more information
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q36: A 2-kg ball is held 4 m
Q37: If the speed of a motor scooter
Q38: A 2500-N pile-driver ram falls 10 m
Q39: A machine puts out 100 watts of
Q40: A light aluminum ball and a heavy
Q42: When a drawn bow of potential energy
Q43: The center of a long uniform log
Q44: If an all-electric car has kinetic energy,
Q45: A car's engine is 20% efficient. When
Q46: A ball rolling down an incline has