2. A cinder block is sitting on a platform 20 m high. It weighs 16kg. The block has

Physics

1 answer:

Cerrena [4.2K]3 years ago

7 0

Answer:

3136 Joules

Explanation:

Applying,

P.E = mgh.............. Equation 1

Where P.E = potential energy, m = mass of the cinder block, h = height of the platform, g = acceleration due to gravity.

From the question,

Given: m = 16 kg, h = 20 m

Constant: g = 9.8 m/s²

Substitute these values into equation 1

P.E = 16(20)(9.8)

P.E = 3136 Joules

Hence the potential energy of the cinder block is 3136 Joules

You might be interested in

A passenger in the rear seat of a car moving at a steady speed is at rest relative to

Ber [7]

The person is at rest with respect to the car. So the best answer is:

c. the front seat of the car.

6 0

3 years ago

What is the correct definition for energy?

WINSTONCH [101]

Property of objects which can be transferred to other objects or converted into different forms.

3 0

3 years ago

Read 2 more answers

Use barrier island in a sentence

Sphinxa [80]

Last summer i went to barrier island.
hope this help

8 0

3 years ago

Why is the sky blue? The earth is surrounded by an atmosphere

Darya [45]

Answer:

The sky is blue because of the different gases present in the air.

3 0

4 years ago

A motor does 20. joules of work on a block, accelerating the block vertically upward. Neglecting friction, if the gravitational

Eva8 [605]

The motor does 20 J of work on the block, it means that the total mechanical energy of the block has increased by 20 J. But the increase in total mechanical energy is equal to the sum of the increases in potential energy and kinetic energy:
$\Delta E = \Delta U + \Delta K$
So, if the gravitational potential energy has increased by 15 J, the kinetic energy has increased by
$\Delta K = \Delta E - \Delta U = 20 J - 15 J= 5 J$

4 0

3 years ago