A 200.0 kg piano is elevated by a crane to a height of 10.0 meters above a sidewalk. If the rope holding the piano breaks, what will the potential energy of the piano be when it has fallen 5.00 meters?

a) 0 J

b) 9,810 J

c) 10,000 J

d) 19,620 J

Question

Physics

Jovanni Garrett

6 February, 21:08

A 200.0 kg piano is elevated by a crane to a height of 10.0 meters above a sidewalk. If the rope holding the piano breaks, what will the potential energy of the piano be when it has fallen 5.00 meters?

a) 0 J

b) 9,810 J

c) 10,000 J

d) 19,620 J

+3

Answers (1)

Know the Answer?

Karma Church · Answer 1

All that business about the crane and the rope and the falling

is only there to confuse us.

The piano ended up 5 meters above the ground.

Potential energy = (mass) (gravity) (height)

= (200 kg) (9.81 m/s²) (5 m)

= (200 · 9.81 · 5) (kg-m²/s²)

= 9,810 joules.

A 200.0 kg piano is elevated by a crane to a height of 10.0 meters above a sidewalk. If the rope holding the piano breaks, what will the potential energy of the piano be when it has fallen 5.00 meters?a) 0 Jb) 9,810 Jc) 10,000 Jd) 19,620 J

A 200.0 kg piano is elevated by a crane to a height of 10.0 meters above a sidewalk. If the rope holding the piano breaks, what will the potential energy of the piano be when it has fallen 5.00 meters?

a) 0 J

b) 9,810 J

c) 10,000 J

d) 19,620 J