Question

If you apply 2 joule of energy to lift a book of 0.05kg and how high will it rise​

Answer 1

Given:-

• Potential Energy ,PE = 2 J

• Mass ,m = 0.05 kg

To Find:-

• How high will it rise,h

Solution:-

As we know that the energy possess by body due to its position is called Potential Energy.

The acceleration due to gravity is 10m/s²

• PE = mgh

where,

PE is the Potential Energy

m is the mass of body

h is the height

Substitute the value we get

→ 2 = 0.05 × 10 × h

→ 2 = 0.5 ×h

→ h = 2/0.5

→ h = 20/5

→ h = 4 m

Therefore,the book will be rise is 4 Metres.

Answer 2

Answer:

Given:-

Potential energy (PE) = 2 Joule

Mass (M) = 0.05 kg

To find:-

Height (H)

Answer:-

As we know that

$\huge \bf \:PE \: = mgh$

Here,

PE = potential energy

M = Mass

H = Height

Putting values

$\sf \: 2 = 0.05 \times 10 \times h$

$\sf \: 2 = 0.5h$

$\sf \: h \: = \dfrac{2}{0.5}$

$\huge \bf \: height \: = 4m$