Consider the tractor shown in $($Figure $1).$ The front wheels are free to roll. The tractor weighs $4600$ lb and has a center of gravity at $G.$

Part A

If the coefficient of static friction between the rear wheels of the tractor and the ground is ${}_s=0\mathrm{.}6,$ determine if the rear wheels slip or the front wheels lift off the ground as the engine provides a torque $M$ to the rear wheels.

the rear wheels slip

the front wheels lift off the ground

Submit

Previous Answers

Correct

Part B

What is the torque needed to cause the motion?

Express your answer in kilopound$-$feet to three significant figures. Assume the positive direction is counterclockwise.

M $=3\mathrm{.}68$ kip $*$ ft incorrect

Figure

$1$ of $1$