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3 years ago

14

Alexander has a mass of 70 kilograms. his apartment is on the second floor. 5 meters yo from ground level . How much work does h

e do against gravity each time he climbs the stairs to his apartment.

1 answer:

navik [9.2K]3 years ago

7 0

potential energy gain = work done by alexander

PE=mass*gravity * height

PE=70kg*9.81*5=3433.5

take g=9.81

answer =3433.5

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Answer:

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Explanation:

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At the bottom the ball has the following angular speed:

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Answer:

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