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16 votes
16 votes
Find the kinetic energy if a body is of mass 10 kg moving with a velocity of 20 m/s

User Robert Atkins
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2.9k points

2 Answers

12 votes
12 votes

Answer:

2000 J

Explanation:

We know that

KE = ½ mv²

KE = ½ × 10 × (20)²

KE = 5 × 400

KE = 2000 J

User StephenKing
by
2.9k points
22 votes
22 votes

Now we have to,

find the required kinetic energy.

The formula we use,

→ KE = 1/2 mv²

The given information is,

→ Mass (m) = 10 kg

→ Velocity (v) = 20 m/s

Let's find the kinetic energy,

→ 1/2 mv²

→ 1/2 × 10 × (20)²

→ 5 x 400

→ [2000 J]

Thus, kinetic energy is 2000 J.

User Soumya Kanti
by
3.1k points