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.
2 answers:
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

(initial at rest)


So, the kinetic energy of the sled after she pulls it is 45 J. Hence, this is the required solution.
The answer is 45 because you multiply 15 x 3
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