An object of mass 15kg is moving with a uniform velocity of 4m/s.What is kinetic energy possessed by the object?
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34
given
Mass of object(m)= 15kg
velocity of the obj(v)= 4m/s
K.E= 1/2mv^2
=1/2 ×15×4^2
=540NJ
Mass of object(m)= 15kg
velocity of the obj(v)= 4m/s
K.E= 1/2mv^2
=1/2 ×15×4^2
=540NJ
Answered by
8
Kinetic energy is a type of energy which is obtained during the motion of an object.
The mathematical expression of the kinetic energy is,
E = 1/2 mv²
(Here, E = kinetic energy , m = mass of the object , v = velocity of the object)
And according to the data mentioned in the question,
E= 1/2 × 15 × (4)² = 120 joules
(here the SI unit of kinetic energy is used because the other units mentioned in the question are also in SI format ).
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