Question

an object of mass 15 kg is moving with a uniform velocity of 4 km/ hr what is the kinetic energy possessed by the object .

Answer with proff​

Answer 1

Answer:

GIVEN : velocity=4Km/hr= 4×5/18 =20/18= 1.11m/s

mass =15 kg

we know that kinetic energy=1/2Mv²

1/2×15×1.11×1.11

=9.240Joule is the answer

Explanation:

hope you understand.

Answer 2

Explanation:

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.