Question

What would be the

height covered by a body whose mass

is 90kg and potential energy is 81x10⁴ joule?​

Answer 1

Answer: 918.36m

Step-by-step explanation:

Let the potential energy be P.E.

We know,

potential energy =

mass(m)×acceleration due to gravity(g)×height(h).

We know acceleration due to gravity(g) of earth= 9.8m/s²

Therefore,

P.E = m×g×h

81×10^4 = 90×9.8×h

h= (81×10^4)÷(90×9.8)

h=918.36m

If we consider the value of 'g' to be 10m/s² then the answer would be,

h=(81×10^4)÷(90×10)

h= 900m.

Answer 2

Answer:

Answer: 918.36m

Step-by-step explanation:

Step-by-step explanation:

Let the potential energy be P.E.

We know,

potential energy =

mass(m)×acceleration due to gravity(g)×height(h).

We know acceleration due to gravity(g) of earth= 9.8m/s²

Therefore,

P.E = m×g×h

81×10^4 = 90×9.8×h

h= (81×10^4)÷(90×9.8)

h=918.36m

If we consider the value of 'g' to be 10m/s² then the answer would be,

h=(81×10^4)÷(90×10)

h= 900m.