A man whose mass is 75kg walks up a flight of 12 steps each 20 cm high in 5 seconds . Find the power he develops in watts

power=work/time=mgh/t=mg*12*.2/5

Bhiya ji e and kuch jyada hi chota ni ho gya

A man whose mass is 75kg walks up a flight of 12 steps each 20 cm high in 5 seconds . Find the power he develops in watts

I don't understand this question

This question ,I don't understand a bit.

Answer is 900

To find the power developed by the man, we need to know the work done and the time taken. The work done can be calculated as the force applied multiplied by the distance traveled.

First, let's calculate the distance traveled by the man. There are 12 steps, and each step is 20 cm high. So, the total vertical distance covered is 12 * 20 cm.

Converting the distance to meters, we have a total vertical distance of (12 * 20) / 100 = 2.4 meters.

Next, let's calculate the work done. Work is equal to the force applied multiplied by the distance traveled. The force applied is equal to the gravitational force acting on the man. The formula for gravitational force is F = m * g, where m is the mass and g is the acceleration due to gravity.

The mass of the man is 75 kg, and the acceleration due to gravity is approximately 9.8 m/s². So, the force applied is (75 kg) * (9.8 m/s²).

Now, we can calculate the work done by multiplying the force applied by the distance traveled: Work = Force * Distance.

Finally, we need to calculate the power developed by the man. Power is defined as the rate at which work is done. It is equal to the work done divided by the time taken.

The time taken is given as 5 seconds.

So, the formula for power is Power = Work / Time.

By plugging in the values we calculated earlier, we can find the power developed by the man in watts.

75kg*12*20÷5=3600W.I think so I am correct