3 years ago

Mechanical energy is lost:

1 answer:

7 0

3. Due to the fact that friction is not converted to kinetic energy nor potential energy. The energy is converted into heat energy which is lost and can’t be put back

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3 years ago

A 5.00 kg crate is suspended from the end of a short vertical rope of negligible mass. An upward force F(t) is applied to the en

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Answer

F = 124 N

Explanation:

given,

mass, m = 5 Kg

time, t = 4.1 s

displacement = y(t)=(2.80 m/s)t +(0.61 m/s³)t³

velocity

$\dfrac{dy(t)}{dt}=2.80 + 1.83 t^2$

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the magnitude of force is equal to 124 N

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