Aril does 1800 j of work to get a canoe moving from rest. april and the canoe have a mass of 70 kg.

a. what is the kinetic energy of april and the canoe after she does the work?

b. what is their velocity after she does the work?

a) KE = 1800 J

b) v = 7.17 m/s

Explanation:

Part a)

As we know by work energy theorem that work done by all force is always equal to change in kinetic energy of system

here we have

given that

initial kinetic energy = 0

work done = 1800 J

so final kinetic energy will be

part b)

now we know that

now from above equation we have

now from above we have

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