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Mass (m)= 50kg

g= 10m/s

no. of steps= 45

height (h)= 15cm or 0.15 m

total displacement= 45*0.15

= 6.75

Power= Work/time

work= mgh

Therefore, w= 50*10*6.75 / 9

= 3375/9

Power of the boy= 375 Joules.

Pls mark as 5 star if it helped!

g= 10m/s

no. of steps= 45

height (h)= 15cm or 0.15 m

total displacement= 45*0.15

= 6.75

Power= Work/time

work= mgh

Therefore, w= 50*10*6.75 / 9

= 3375/9

Power of the boy= 375 Joules.

Pls mark as 5 star if it helped!

**mass = 50 kg**

**acceleration = 10 m/s²**

**no. of steps = 45**

**height = 15 cm = 0.15 m**

**distance covered ,**

**= 45 * 0.15**

**= 6.75 m**

**work done = Fs**

**=mgh**

**=50*10*6.75**

**= 3375 J**

**Power= Work/time**

**Therefore,**

**P = 3375/9**

**Power = 375 W .**

**i hope it helps..................**