Question

Calculate the kinetic energy of an object weighing
500g moving at a velocity
300m/s.​

Answer 1

Question :

Calculate the kinetic energy of an object weighing 500g moving at a velocity 300m/s.

Answer :

$\sf\pink{Given:}$

• Mass is 500 g .

• velocity is 300 m/s .

$\sf\pink{To\:find:}$

• kinetic energy ?

Explanation :

• 1 kg = 1000 g

500 g = 0.5 kg

$\\ \sf\purple{Kinetic\: energy = \dfrac{1}{2}m{v}^{2}}$

$\\ \longrightarrow\sf{ \dfrac{1}{2}\times 0.5\times 300\times 300}$

$\\ \longrightarrow\sf{ \dfrac{1}{2}\times 0.5\times 90000}$

$\\ \longrightarrow\sf{0.5\times 45000}$

$\\ \longrightarrow\sf{22500 J}$