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A work crew is using a pulley to lift a small piano up the outside of a building to a second-floor balcony. The piano has mass 180 kg. At a height of 3.0 m, what is the piano’s gravitational potential energy with respect to the ground? A. 9.8 J B. 180 J C. 540 J D. 5,300 J

Respuesta :

Answer: 5,300 j

Explanation:

i answered it and got it right

temdan2001

The formula to use to calculate the piano's gravitational potential energy is P.E = mgh. The piano's gravitational potential energy with respect to the ground is 5300 Joules. The correct answer is option D

From the question, the following parameters are given.

The mass m of the piano = 180kg

The height h = 3 m

Let the constant acceleration due to gravity = 9.8m/[tex]s^{2}[/tex]

The formula to use to calculate the piano's gravitational potential energy is:

P.E = mgh

Substitute all the given parameters into the formula above.

P.E = 180 x 9.8 x 3

P.E = 5292 Joules

P.E = 5300 Joules ( Approximately )

Therefore, The correct answer is option D. That is, the piano's gravitational potential energy with respect to the ground is 5300 Joules

Learn more here : https://brainly.com/question/13584911

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