Asked by Shardi
1)Under ideal conditions, if 300 J of work are required tolift a mass to a certain height, the same mass should provide ___ J to do work as it falls back to Earth.
Can you please comment as to whether my answer of 300 J is correct?
2)___ is conserved during an inelastic collision, although kinetic energy decreases.
I think it is energy, but is that specific enough? or are they looking for momentum?
Can you please comment as to whether my answer of 300 J is correct?
2)___ is conserved during an inelastic collision, although kinetic energy decreases.
I think it is energy, but is that specific enough? or are they looking for momentum?
Answers
Answered by
drwls
1) 300 J
2) Momentum
Since the collsion is inelastic, kinetic energy is not conserved.
2) Momentum
Since the collsion is inelastic, kinetic energy is not conserved.
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