Question

body of mass 50

Kg climbs stair by spending 1200 Joule of energy. How high does the body climb

up?

solve it​

Answer 1

Work done for climbing the stairs is 1200 J

P.E. = work done = mgh

1200 = 50 × 9.8 × h

h =1200/(50×9.8)

h = 2.4 m

Thus, height climbed by the boy on spending 1200 J of energy is 2.4 m

Answer 2

Answer:

2.4 cm²

hope it will help you