Physics

Problem

Three pulls are made on the same cart over a displacement of

5\,\text{m}

along a straight road. \nCase A:

F = 20\,\text{N}

acting along the direction of motion. Case B:

F = 12\,\text{N}

making an angle of

60^{\circ}

with the direction of motion. Case C:

F = 30\,\text{N}

acting exactly opposite to the direction of motion. \nAnswer the questions below. (a) Calculate the work done on the cart in each case. (b) Arrange the three cases in order of increasing magnitude of work done. (c) Identify the case in which the work done is maximum negative and state its value.

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