A Farmer hitches her tractor to a sled loaded with firewood and pulls it a distance of 20m along level ground. The total weight of sled and load is 14,700N. The tractor exerts a constant 5000 N force at an angle of 36.9° above the horizontal. A3500N friction force opposes the sleds motion. a) Find the work done by each force acting on the sled and the total work done by all forces. b) Suppose the sleds initial speed vi is 2.0m/s. what is the speed of the sled after it moves 20m? (solve it by kinetic energy theorem and the work-energy theorem).

A Farmer hitches her tractor to a sled loaded with firewood and pulls it a distance of 20m along level ground. The total weight of sled and load is 14,700N. The tractor exerts a constant 5000 N force at an angle of 36.9° above the horizontal. A3500N friction force opposes the sleds motion. a) Find the work done by each force acting on the sled and the total work done by all forces. b) Suppose the sleds initial speed vi is 2.0m/s. what is the speed of the sled after it moves 20m? (solve it by kinetic energy theorem and the work-energy theorem).

Name: A Farmer hitches her tractor to a sled loaded with firewood and pulls
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Description: A Farmer hitches her tractor to a sled loaded with firewood and pulls it a distance of20m along level ground. The total weight of sled and load is 14,700N. The tractorexerts a constant 5000 N force at an angle of 36.9° above the horizontal. A3500Nfr

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter7: Work, Energy, And Energy Resources

Section: Chapter Questions

Problem 7PE: A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N...

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