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8 Energy – forces doing work

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Question 83
H

A crate is pulled 3.0 m along a level floor. Its kinetic energy increases by 48 J and 24 J is transferred to thermal stores by friction. What constant horizontal pulling force is applied?

[1]
A

16 N16\ \mathrm{N}16 N

B

72 N72\ \mathrm{N}72 N

C

8.0 N8.0\ \mathrm{N}8.0 N

D

24 N24\ \mathrm{N}24 N

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8 Energy – forces doing work Questions

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

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