Question

calculate the energy possesd by a stone of mass 10 kg kept at a height of 5 m If 196*100 jule of energy were used to raise a 40 kg body above the ground how high would be raised

Answer 1

Hello Mate!

1. Since when object is at it's maximum height then it workdone (energy) is also maximum.

Workdone = Force • displacement

Work done = 10(10) • 5 m

Work done = 500 J

Thus energy possed is 500 J.

2. Since energy = work done

Work done = F • s

Work done = (40)(10) • s

1.96 × 10⁴ J = 400 • s

( 1.96 × 10⁴ )/( 4 × 10² ) = s

0.49 × 10² = s

49 m = s

Hence object goes to 49 m high.

Have great future ahead!

Answer 2

here is your answer ⛲⛲⛲⛲⛲⛲⛲⛲⛲

for block => energy = P.E = mgh = (10) (5) g = 50 g( joule = 1)

for boy = energy = 1960 joule.............

E = mgh

1960 = (40)(9.0)h
h = 1960/40 X 9.8 = 5m


thanks for asking this question ☺☺☺☺☺jii