A gardener uses a 15-lb wheelbarrow to transport a 60-lb bag of fertilizer. Determine (a) the force must she exert on each handle, (b) the force on the wheel at A.

Incomplete question

So i analysed the question, the question should have a schematic diagram

Explanation:

He uses a wheelbarrow

Weight of wheelbarrow =Wb=15lb

Weight of fertilizer Wf=60lb

The force acting on the wheel barrow are

2 equal upward force lifting the barrow up

The weight of the barrow downward

The weight of the fertilizer downward

The reaction at the tire upward.

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the device is called “ rocket engine”