Physics

Problem

a. A trolley is pulled to the right by a constant horizontal force of

40\,\text{N}

, while friction offers

40\,\text{N}

to the left. Are the forces on the trolley balanced or unbalanced? b. Predict the motion of the trolley under the forces given in part (i). c. The pulling force is suddenly increased to

55\,\text{N}

to the right while friction remains

40\,\text{N}

to the left. In which direction will the trolley accelerate now?

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