Question
You serve a volleyball with a mass of 2.1 Kg. The ball leaves your hand with a speed of 30 m/s and is in the air above the Earth's surface at the height of 10 m. How much gravitational potential energy does the ball have?
- 200J
- 206J
- 200kJ
- 206KJ
Hint:
When the body has 1.2 Kg mass, 30 m/s gravity and 10 m height, the GPE will be 206J.
The correct answer is: 206J
- The mass of the ball m,= 2.1 Kg, The speed g= 30 m/s, and the height h= 10 m.
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A person starts running at a speed of 30 cm/s. His weight is 1200 N. He reaches the top of the hill at 220 m. Considering the g as 10 m/s2, what is its gravitational potential energy?
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A roller coaster is at the top of a 72 m hill and weighs 966 N. What is its gravitational potential energy?
The energy that an object has or acquires when its position changes due to being in a gravitational field are known as gravitational potential energy. Gravitational potential energy can be defined as energy that has a connection to gravitational force or gravity.
Gravitational potential is the effort required to move a unit test mass from infinity into the source mass's gravitational field. Both are held above the table, with one at the table. We can now state that the pencil that is higher than the table will have more gravitational potential energy.
¶The formula for Gravitational Potential Energy
⇒ GPE = m⋅g⋅h
where
m represents the mass in kilograms.
Gravitational acceleration, or g (9.8 on Earth)
The measurement of h above the ground is in meters.
A roller coaster is at the top of a 72 m hill and weighs 966 N. What is its gravitational potential energy?
The energy that an object has or acquires when its position changes due to being in a gravitational field are known as gravitational potential energy. Gravitational potential energy can be defined as energy that has a connection to gravitational force or gravity.
Gravitational potential is the effort required to move a unit test mass from infinity into the source mass's gravitational field. Both are held above the table, with one at the table. We can now state that the pencil that is higher than the table will have more gravitational potential energy.
¶The formula for Gravitational Potential Energy
⇒ GPE = m⋅g⋅h
where
m represents the mass in kilograms.
Gravitational acceleration, or g (9.8 on Earth)
The measurement of h above the ground is in meters.
