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8 Energy – forces doing work

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Question 78
F

A box is pulled 2.5 m up a ramp at constant speed. The pulling force is 60 N along the ramp. The gravitational energy store increases by 110 J. The remaining transferred energy increases thermal stores. What is the increase in thermal stores?

[1]
A

40 J40\ \mathrm{J}40 J

B

260 J260\ \mathrm{J}260 J

C

50 J50\ \mathrm{J}50 J

D

150 J150\ \mathrm{J}150 J

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8 Energy – forces doing work Questions

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

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