Question

Calculate the kinetic energy of a body of mass 15 kg if it is moving with a velocity of 8 ms-1​

Answer 1

Answer:

K.E of a body=15kg

Velocity=8m s-1

K.E=½ × m × v²

K.E=½ × 15 × 8²

32×15

=48O J

Answer 2

Concept Introduction: Kinetic Energy is present in the nature.

Given:

We have been Given: Mass of the body

$15kg$

Velocity of the body is

$8m {s}^{ - 1}$

To Find:

We have to Find: Kinetic Energy.

Solution:

According to the problem, we know,

$ke = \frac{1}{2} m {v}^{2} \\ ke = \frac{1}{2} \times 15 \times {8}^{2} \\ ke = \frac{1}{2} \times 15 \times64 \\ ke = 32 \times 15 \\ ke = 480joules$

Final Answer: The Kinetic Energy is

$480 \: joules$

#SPJ3