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Question 15

A machine is used to lift a load of 20N through a height of 10m.• If the efficiency of the machine is 40%, how much work is done?

  • A.80J
  • B.500J
  • C.300J
  • D.120J
Objective

Question details

Exam body
UNIBEN
Subject
General Paper
Year
2019/2020 - Model
Question no.
#15
Type
Objective
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