You kick a soccer ball with a mass of 2 kg. The ball leaves your foot with a speed of 30 m/s. How much kinetic energy does the b
2 answers:
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Answer: Option (c) is the correct answer.
Explanation:
When the child is tossed up into the air then she gains kinetic energy as the child has moved from its initial position.
It is given that mass is 20 kg, velocity is , and height is 2 m.
Calculate the kinetic energy of child as follows.
kinetic energy =
=
=
=
Also, when child falls off the ground then she will have gravitational potential energy.
Calculate gravitational potential energy of child as follows.
Potential energy = m × g × h
=
=
ΔT= 81°C was the increase in temperature.
<h3>steps</h3>As evidenced by energy conservation
To increase its temperature, all of its kinetic energy will be converted to thermal energy.
ΔT
then divide both sides by the object's mass.
ΔT
therefore, a temperature shift is described as
ΔT=
ΔT= / 2 x 387
ΔT= 81°C
ΔT= 81°C was the increase in temperature.
learn more about increase in temperature here
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