The answer is C) energy was lost to heat and sound
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Answer:</h2><h2><u>this</u><u> this is an image of this is helpful to you please thank you</u></h2>
Explanation:
It is given that,
Force exerted by a boy, F = 11.8 N
Angle above the horizontal,
Mass of the sled, m = 6.15 kg
Distance moved, d = 2.75 m
Initial speed, u = 0.37 m/s
Let W is the work done by the boy. Using the expression for the work done to find it as :
W = 28.65 joules
Let v is the final speed of the sled. Using the work energy theorem to find it. It states that the work done is equal to the change in kinetic energy of an object. It is given by :
v = 3.07 m/s
So, the final speed of the sled after it moves 2.75 m is 3.07 m/s. Hence, this is the required solution.
Second response. Mass is the amount of matter In object...