Question

force of 50N acts on a body of mass 5kg along a distance of 15m. The kinetic energy acquired by the body is- ​

Answer 1

Question ⤵

Force of 50N acts on a body of mass 5kg along a distance of 15m. The kinetic energy acquired by the body is- 

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Given ⤵

Force => 50 Newton

Mass => 5 kg

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To Find ⤵

Kinetic Energy = ?

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Formula Use ⤵

• Force = Mass × Velocity

• Kinetic Energy = $\frac{1}{2} {(Mass×Velocity)}^{2}$

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Put the value in the formula Force = Mass × Velocity

=> 50 = 5 × V

=> $V = \frac{50}{5} = 10 {m/s}^{2}$

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Kinetic Energy =$\frac{1}{2} {(Mass×Velocity)}^{2}$

=> $\frac{1}{2} \times 5 \times {10}^{2}$

=> $\frac{1}{2} \times 5 \times 100$

=> 500 J

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Answer 2

Answer:

The kinetic energy acquired by the body is 25J

Explanation:        

Force = mv

F = 10N

m= 2kg

Substitute the value in the formula

10 = 2×v

v = 10/2 = 5m/s

Kinetic energy = 1/2 mv^2

= 1/2 × 2 ×5^2

= 1/2 ×2×25 = 25J