Question

5. An athlete weighing 50 kg is running at a
constant rate of 10 m/s. What is his kinetic
energy?​

Answer 1

Given -

• Mass (m) = 50 kg

• Velocity (v) = 10 m/s

To find -

• Kinetic energy

Solution -

Formula to calculate kinetic energy -

• $\sf{\dfrac{1}{2}mv^2}$

Substitute the given values.

$: \implies\sf{ \dfrac{1}{2} \times 50 \times 10 }$

$: \implies\sf{250 \: joule}$

$\large{\underline{\boxed{ \sf {\green{kinetic \: energy \: = 250 \: joule}}}}}$

━━━━━━━━━━━━━━━━━━━━━━

Kinetic energy -

• The energy possessed by a body due to its virtue of its motion.

• It is scalar quantity.

• Its S.I. unit is joule (J).