Exam 2 Preparation Deadline:100% until Thursday, October 21 at 8:00 AM Falling to the Earth 12 An object is released from rest high above the surface of the earth. When it has fallen halfway to the surface, its kinetic energy is . After it has fallen twice as far, just before it hits the surface of the earth, its kinetic energy is . 1) How does compare to twice

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.

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