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Question 32

In a wheel and axle mechanism, the diameters of the wheel and axle are 40cm and 8cm respectively. Given that the machine is 80% efficient, what effort is required to lift a load of 100 N?

  • A.20 N
  • B.25 N
  • C.50 N
  • D.80 N
Objective

Question details

Exam body
NDA
Subject
Physics
Year
2010/2011
Question no.
#32
Type
Objective
Previous · Q31A parachute attains a terminal velocity when Next · Q33 The tendon in a man's leg is 0.01 m long, if a force a 5N stretches the tendon…

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