Question

A person performs 420j of work in 5 minutes calculate power delivered by him​

Answer 1

Answer:

$\large{\underline{\boxed{\sf Power = 1.4 \ watt}}}$

Explanation:

Given that ;

Work done by person = 420 joule

Time taken = 5 mins

Now, we need to convert minutes into seconds ;

⇒ Time = 5 * 60 = 300 secs

To find: The power delivered by the person.

Solution:

We know that ;

Power is given by dividing the amount of work done in a given period of time.

$\sf Power = \frac{Work \ done}{time} \\ \\ \implies \sf Power = \frac{420}{300} \\ \\ \implies \sf power = 1.4 \: watt$

Hence, the power delivered by the person is 1.4 watt.

Answer 2

Answer:

Power= 1.4 watt

Explanation:

Given problem:

A person performs 420j of work in 5 minutes calculate power delivered by him​.

Solution:

To find:

⇒The power delivered by the person.

----------------

According, to your question:

⇒Work done by person = 420 joule

⇒Time taken = 5 mins

Now convert time,In question it is in mins but we have to convert it in secs (seconds) ;

⇒ Time = 5× 60 = 300 secs..

⇒Formula of Power:

⇒Power = $\frac{Work Done}{Time}$

⇒According to formula,

⇒P = $\frac{420}{300}$ = 1.4 watt............(Answer)