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You are installing a new spark plug in your car, and the manual specifies that it be tightened to a torque that has a magnitude of 97 N·m. Using the data in the figure, determine the magnitude F of the force that you must exert on the wrench.

User MilkyTech
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1 Answer

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We are given

the torque requirement of 97 Newton meter.

The formula of the torque is

τ = r * F * sinθ

where

τ is the torque
r = radius from the axis of rotation to the point of application.
F = force exerted
θ = the angle between the lever arm and the radius

Try to substitute the given and solve for F.
User Daniel Tranca
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