Question

2. Arun can run with a speed of 8 m/s against the frictional force of 10 N, and Kiran can move with a speed of 3 m/ s against the frictional force of 25 N.
Who is more powerful
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Answer 1

✿ Power of Arun > Power of Kiran

Given ,

• Arun can run at a speed of 8m/s against frictional force of 10N
• Kiran can move with a speed of 3 m/ s against the frictional force of 25 N

We need to find ,

• Who is more powerful = ?

So we need to find the power of arun & kiran

So ,

♦ Power ( P ) = Force ( F ) × Velocity ( V )

☯ Power of Arun :-

⇒ Power ( Arun ) = 10 × 8

⇒ Power ( Arun ) = 80 W

☯ Power of Kiran :-

⇒ Power ( Kiran ) = 25 × 3

⇒ Power ( Kiran ) = 75 W

☯ Now comparing , powers of arun & kiran :-

⇒ 80 W > 75 W

⇒ Power of Arun > Power of Kiran

Answer 2

Question :-

• Arun can run with a speed of 8 m/s against the frictional force of 10 N, and Kiran can move with a speed of 3 m/ s against the frictional force of 25 N. Who is more powerful ?

Given :-

• Arun's speed is 8m/s against the frictional force of 10N
• Kiran's speed is 3m/s against the frictional force of 25N

To Find :-

• Who is more Powerful ?

Solution :-

To Find who is more powerful , then firstly we have to find the Power applied by both, then easily we can compare them .

★ Power = Force × Velocity ★

⇛ Power applied by Arun = 10 × 8

⇛ Power applied by Arun = 80W

→ Power applied by Kiran = 25 × 3

→ Power applied by Kiran = 75W

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If can be seen that Arun applied more power and Kiran applied less Power.

Therefore, Arun is more Powerful then Kiran.

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