Answer:
17.84m
Explanation:
Gravitational potential energy is the energy possessed by a body under influence of gravity by virtue of its position. It is expressed as:
GPE = mgh where:
m is the mass of the body
g is the acceleration due to gravity
h is the height reached by the object
Given
GPE = 9800J
Mass = 56kg
acceleration due to gravity = 9.81m/s²
Substitute into the formula and get the height:
9800 = 56 * 9.81 * h
9800 = 549.36h
h = 9800/549.36
h = 17.84m
Hence the object is at a height of 17.84m
