Question

Find the gravitational potential energy of 1kg mass kept at a height of 5m above the ground. calculate its kinetic energy when it falls and hits the ground. if g =10ms-2.
Please answer correctly to both the questions?

Answer 1

Answer:

ANSWER

P.E=m×g×h

Given m=1 kg and h=1 m

P.E=1×10×5=50J

Hence potential energy is 50Joule.

Hope this helps you☺

Answer 2

Answer :

➥ The Gravitational potential energy = 50 J

Given :

➤ Mass of body = 1 kg

➤ Height above the ground = 5 m

➤ Acceleration due to gravity = 10 m/s²

To Find :

➤ Gravitational potential energy = ?

Required Solution :

For solving this question, let's first know about Potential energy.

The energy stored in an object and is measured by the amount of work done is known as potential energy.

• The SI unit of potential is Joule (J).
• The Potential energy is represented by P.E or U.
• Potential energy is defined as mgh.

Let's solve this question...

We can find Gravitational potential energy by using the formula of potential energy which says P.E = mgh.$\:$

Here,

• P.E is the Potential energy in Joule (J).
• m is the Mass in kilogram (kg).
• g is the Acceleration due to gravity in m/s².
• h is the Height meters (m).

✎ So let's calculate Potential energy (P.E) !

⇛ P.E = mgh

⇛ P.E = 1 × 10 × 5

⇛ P.E = 10 × 5

⇛ P.E = 50 J

║Hence, the Gravitational potential energy is 50 J.║