A piano of mass 852 kg is lifted to a height of 3.5 m. How much gravitational potential energy is added to the piano? Accelerati

Question

2 years ago

15

on due to gravity is g = 9.8 m/s2 O A. 102,282 J O B. 29,224J O C. 2982 J O D. 304.3J SUSM

1 answer:

slega [8] · Answer 1 · 2022-09-01T01:34:35+03:00

Answer:

29223.6J

Explanation:

Given parameters:

Mass of Piano = 852kg

Height of lifting = 3.5m

Unknown:

Gravitational potential energy = ?

Solution:

The gravitational potential energy of a body can be expressed as the energy due to the position of a body;

G.P.E = mgh

m is the mass

g is the acceleration due to gravity

h is the height

Now insert the given parameters and solve;

G.P.E = 852 x 9.8 x 3.5 = 29223.6J