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?

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