Question

An object has potential energy 98 J when held at a height of 2 m from the ground. Calculate the mass of the object


please also include formaula with ans

Answer 1

Explanation:

Given,

Mass of object m=10kg.

Height h=6m.

Acceleration due to gravity g=9.8m/s

2

Potential Energy of object P.E=m×g×h

⇒mgh=10×9.8×6=98×6

=588J

Energy possessed by the object is 588Joule.

Answer 2

Answer:

5g

Explanation:

Potential energy = 98 Joules( given )

Height ( h ) =2m

g= 9.8m per second sq

but

Potencial energy = m*g*h

98=m*9.8*2

m=98/9.8*2

m=5g