Question

Calculate the kinetic energy of a body moving with a speed of 5 m/s having a mass of 2kg.

Answer 1

$\underline{\underline{\blue{\textbf{Step - By - Step - Explanation : -}}}}$

To Find :

• We need to calculate kinetic energy of body.

Solution :

• Velocity of body = 5m/s
• mass of body =2kg

$\boxed{\underline{\red{\textbf{Kinetic Energy of body = 1/2mv²}}}}$

= 1/2 × 2 × (5)²

= 1/2 × 2 × 25

= 25 J

$\large\dag \large { \orange{\underline{\bf{Hence }}}}$

$\purple{\textrm{Kinetic Energy of body is 25 Joules }}$

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Answer 2

Explanation:

Kinetic energy =1/2 mv^2

therefore, 1/2 ×2×(5)^2

= 25 J