a book has a mass of 0.95kg is held 2.3m above the ground. determine the gravitational potential energy of the book

PEgrav = 21.4J

Explanation:

Use the gravitational potential energy formula

m= 0.95kg h=2.3m g= 9.8 N/kg

PEgrav = m *• g • h

PEgrav = 0.95kg * 9.8N/kg * 2.3m

PEgrav = 21.4J

what was the answer?

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.