1 answer

The tune-up specifications of a car call for the spark plugs to be tightened to a...

Question:

The tune-up specifications of a car call for the spark plugs to be tightened to a torque of 32 N⋅m . You plan to tighten the plugs by pulling on the end of a 20-cm-long wrench. Because of the cramped space under the hood, you'll need to pull at an angle of 105 ∘ with respect to the wrench shaft.

With what force must you pull?

Express your answer using two significant figures.

F = ________ N


Answers

Torque is given by

= Frsin T

32 =F ×(0.2 m)× sin 105°

32 N.m = F × (0.193 m)

F = 165.6 N

In two significant figures,

F = 170 N

.

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