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abruzzese [7]
3 years ago
15

A girl pulls a sled with a force of 15 N over a distance of 3 m. What is the kinetic energy of the sled after she pulls it? Assu

me there is no friction.
Physics
2 answers:
docker41 [41]3 years ago
5 0

Answer:

Kinetic energy, KE = 45 J

Explanation:

It is given that,

Force applied by girl on a sled, F = 15 N

It moves a distance, d = 3 m

We need to find the kinetic energy of the sled after she pulls it. We know that the work done is equal to the change in kinetic energy

W=\Delta E=K_f-K_i

K_i=0 (initial at rest)

KE=W=F\times d

KE=15\ N\times 3\ m=45\ J

So, the kinetic energy of the sled after she pulls it is 45 J. Hence, this is the required solution.

Ivenika [448]3 years ago
3 0
The answer is 45 because you multiply 15 x 3 
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