Question

A girl weighing 42kg eats bananas whose energy is 980 calories. If this energy is used
to go to height h, the value of h in meters is. (Take g = 9.8 m/s)​

Answer 1

Answer:

given

energy = 980 cal = 4.2 x 980 J

mass =42kg

we know that

E = mgh

42 x 98 = 42 x 9.8 x h

h =10 m

the value of h in meters is 10