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8 Energy – forces doing work

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Question 73
F

A person holds a bag stationary, then carries it horizontally at a constant height. The supporting force on the bag is vertically upwards throughout. Which gives the work done by this supporting force during the two stages?

[1]
A

Zero while stationary; positive while carried

B

Positive while stationary; zero while carried

C

Positive while stationary; positive while carried

D

Zero while stationary; zero while carried

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8 Energy – forces doing work Questions

  1. GCSE
  2. /Physics
  3. /8 Energy – forces doing work

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