Activity #1 -- Work Calculation Problems
Investigation #1 – Work Calculation Problems
1. Calculate the work done by a person that pushes a cart 5 meters with a force of 100 Newtons.
2. Calculate the work done by a weightlifter that lifts a 75 Newton bar 2 meters off of the ground.
3. A person lifts a 5 Newton bag of groceries from the floor to the top of the countertop, which is 1.1 meters tall. What is the work done by this person in lifting the groceries?
4. Six marines use a series of pulleys, called a block and tackle, to pull a very heavy (24000 Newton) HUMVEE out of a sandpit. In doing so, they must pull 100 meters of rope through the pulley system. How much work do they do in completing the task? How much work does each marine do in completing the task?
5. It will take 3000 Joules of energy to push a large moving box up a ramp and into the back of a truck. If the length of the ramp is 15 meters, how much force will be required to accomplish this task?
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