Question

an object of mass 15 kg is moving with a uniform velocity of 4ms what is the kinetic energy possessed by the object
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Answer 1

Answer

M=15kg

V=4m/s

K.E.=1/2mv(2)

= 1/2*15*2*2

=15*2

=30J

Explanation:

Answer 2

Answer:

Kinetic energy possessed by the object is 120 J.

Explanation:

Given,

An object of mass = m = 15 kg

Uniform velocity = v = 4m s-¹

To find: what is the kinetic energy possessed by the object.​

Solution:

Kinetic energy is defined as the energy of the body by virtue of its motion.

Kinetic Energy is directly proportional to the square of velocity.

i.e K.E = 1 / 2 mv²

here, m = 15 kg and v = 4 m/s

Substituting values, we will get,

K.E = 1/2 * 15 * 4 * 4

K.E = 120 J

Therefore, kinetic energy possessed by the object is 120 J.