What is kentic energy and potential …
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Posted by Rajendra Bain 6 years, 5 months ago
- 3 answers
Gaurav Seth 6 years, 5 months ago
Kinetic energy: Energy possessed by a body by virtue of its motion is called its kinetic energy.
Mathematically, kinetic energy is expressed as,
K.E =
where,
m is the mass of the moving body,
v is the velocity of the body.
Potential energy: Energy possessed by a body by virtue of its position or shape is called its potential energy.
For a body of mass m lying at a height h above the ground level, gravitaional potential energy is given by,
P.E = mgh
Given,
Mass of the body, m = 40 kg
Velocity of the body, v = 15 m/s
So, K. E. = 1 mv2 = 1 x 40 x (15)2 = 4500 J.
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