Question

A boy of mass 60 kg climbs stairs by spending 1200 J of energy. How high does the boy climb up? [ here g= 10 m/s²]​

Answer 1

Explanation:

given:-

mass=60kg

work done=1200 J

g=10m/s^2

to find:-distance climbed

as we know,

F=m*a. or

Wieght=m*g

wieght=60*10

wieght=600N

work done=Force*distance

1200=600*distance

distance=1200/600

distance=2m

so the boy travelled a distance of 2 metre