Question

An object of mass 1kg has a potential energy of 10J. What is the height of the object relative to the ground?$(Takeg=10m/se{c}^2)$

• A. 9.8 m
• B. 1 m
• C. 32 m
• D. 0.102 m

Answer 1

The correct option is B 1 m

Potential energy is mathematically represented by the formula,
$\text{P.E. = m}$ $\times g\times h$
where m is the mass,
g is acceleration due to gravity and
h is the vertical height in meters.

P.E. = 10 J

$m\times g\times h=10J$

or, $1\times 10\times h=10J$

or, $h=1m$