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A

Anonymous

Jan 05, 2025

The bolts on the cylinder head of an engine require tightening to a torque of 86 m·N. If a wrench is L = 30 cm?

The bolts on the cylinder head of an engine need to be tightened to a torque of 86 N·m. Given that the wrench used is 30 cm long:

  1. What force, applied perpendicularly to the wrench at its end, must the mechanic exert? (Answer in Newtons, N)
  2. If the six-sided bolt head has a diameter of 15 mm, estimate the force applied near each of the six contact points by the socket wrench. (Answer in Newtons, N)

2 Answers

A
Anonymous

Jan 30, 2025

Torque = force * arm

Get consistent units

86 nm = F 0.30 m

F = 286.67 N

1/6 of 86 = 14.33 N*m

T = F*L

14.33 = F * 0.015 m

F = 955.33 N (At least I think that is what the question asks)

A
Anonymous

Dec 29, 2024

for the second half, make sure to use 0.0075m, (the radius), instead of the diameter (0.015m).

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