Anne is pushing a wheelbarrow filled with mulch to place in her garden. she is pushing the wheelbarrow with a force of 70 n at an angle of 50° with the horizontal. how much work in joules is anne doing when she pushes the wheelbarrow 25 meters?

Anne is pushing a wheelbarrow. work done by Anne is 1124.87 Joules.

Solution:

Given that Anne is pushing a wheel barrow filled with mulch to place in her garden. She is pushing the wheel barrow with a force of 70 N at an angle of with the horizontal.

She pushes the wheel barrow 25 meters.

Need to calculate work done.

Work done = force in the direction of moment x distance covered  

So force in the direction of moment is force in the distance of horizontal that is 70cos50 newton

Work done = 1124.87 Joules.

Hence word done by Anne is 1124.87 Joules.

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