21. What is the mass of an object that produces a force of 900 N while accelerating at 12 m/s?? 22. What is the net force required to accelerate a 750 kg car at 5 m/s2?
23. A 20 kg object is being pushed with a force of 440 N. What is its acceleration?
24. Label the arrows of the free-body diagram of a person falling with a parachute with the
correct forces
Label Force
Label Force

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.