1 One of the events in a strength competition is to pull a cement block 100 feet One competitor pulls the block by exerting a constant force of 250 pounds on a rope attached to the block at an angle of 30 deg with the horizontal (see figure) Determine the work done in pulling the block 2 A child pulls a toy wagon by exerting a constant force of 25pounds on a handle that makes a 20 deg angle with the horizontal (see figure) Determine the work done in pulling the wagon 50 feet 3 A ski patroller pulls a rescue toboggan across a flat snow surface by exerting a constant force of 35pounds on a handle that makes a 22 deg angle with the horizontal (see figure) Determine the work done in pulling the toboggan 200feet 30 100 ft Not drawn to scale 20

Question: 1. One of the events in a strength competition is to pull a cement block 100 feet. One competitor pulls the block by exerting a

1. One of the events in a strength competition is to pull a cement block 100 feet. One competitor pulls the block by exerting a constant force of 250 pounds on a rope attached to the block at an angle of 30° with the horizontal (see figure). Determine the work done in pulling the block.

2. A child pulls a toy wagon by exerting a constant force of 25pounds on a handle that makes a 20° angle with the horizontal (see figure). Determine the work done in pulling the wagon 50 feet.

3. A ski patroller pulls a rescue toboggan across a flat snow surface by exerting a constant force of 35pounds on a handle that makes a 22° angle with the horizontal (see figure). Determine the work done in pulling the toboggan 200feet.

30 -100 ft- Not drawn to scale 20

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