Net Work & Work-Energy Theorem Video Lessons

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Problem: Two workhorses tow a barge along a straight canal. Each horse exerts a constant force of magnitude F, and the tow ropes make an angle θ with the direction of motion of the horses and the barge.  Each horse is traveling at a constant speed v(a) How much work W is done by each horse in a time t? Express the work in terms of the quantities given in the problem introduction.(b) How much power P does each horse provide? Express your answer in terms of the quantities given in the problem introduction.

FREE Expert Solution

Word done:

W=F·d

Distance:

d=v·t

Power:

P=Wt

(a)

Force applied on the barge by each horse = (F cos θ)

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Problem Details

Two workhorses tow a barge along a straight canal. Each horse exerts a constant force of magnitude F, and the tow ropes make an angle θ with the direction of motion of the horses and the barge.  Each horse is traveling at a constant speed v

(a) How much work W is done by each horse in a time t? Express the work in terms of the quantities given in the problem introduction.

(b) How much power P does each horse provide? Express your answer in terms of the quantities given in the problem introduction.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Net Work & Work-Energy Theorem concept. You can view video lessons to learn Net Work & Work-Energy Theorem. Or if you need more Net Work & Work-Energy Theorem practice, you can also practice Net Work & Work-Energy Theorem practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Tanner's class at MSSTATE.