Question

In a fierce game of spoons, a student grabs a spoon with a force of 10 N over a
distance of 0.20 meters in a time of 0.5 seconds. How much power did he use?

Answer 1

Answer:

• 4 watts

Explanation:

Here we need to calculate the power used by him. Power can be calculated by using the formula

• Power= Work/time

First let's calculate the work

• Work = Force × displacement

We have, In a fierce game of spoons, a student grabs a spoon with a force of 10 N over a distance of 0.20 meters in a time of 0.5 seconds.

So,

• Force = 10 N
• distance or displacement is 0.20 meters.

Substitute the required values

• Work = 10 × 0.20
• Work = 2 Joules

Now Let's Calculate the Power :

• Power = work/time
• Power = 2/0.5
• Power = 4 watts

Hence, the power used by him is 4 watts

Answer 2

Answer:

4 W

Explanation:

Power = work / time

Work = force × distance

Substituting:

Power = force × distance / time

P = Fd / t

P = (10 N) (0.20 m) / (0.5 s)

P = 4 W