Question

An object of the mass 25 kg is moving with a uniform velocity of 4 ms ^-2.What is the kinetic energy possessed by the object?

Answer 1

Answer:

K. E=1/2mv2

=1/2*25*(4)2

=1/2*25*8

=25*4

=100J

Hence the kinetic energy is 100J

Answer 2

Answer:

200 J

Explanation:

According to the given question,

m = mass = 25 kg

v = velocity = 4 m/s

K.E. = kinetic energy = ?

And we are asked to find the kinetic energy possessed by the body.

We know,

• K.E. = 1/2 mv^2

Putting the values we get,

• K.E. = 1/2 * 25 * 16
• K.E. = 200 J

Thus Kinetic energy of the object is 200J when mass is 25 kg and velocity is 4 m/s.