Question

15. An object has a mass of 500 kg.It moves with a speed of 30 m / s.What is its kinetic
energy?
का
A 7.5 k) B 15 k) C 225 kJ D 450 kJ​

Answer 1

Answer:

$kinetic \: energy \: = \frac{1}{2} mv {}^{2} \\ \\ k \: = \frac{1}{2} \times 500 \times 30 {}^{2} \\ \\ k \: = 225000 \: joule$

Hence kinetic energy of the object will be 225 kJ