A truck and a car are set to collide. The truck is moving at a velocity of 20 m/s and has a mass of 1500 kg. The car is moving at an unknown speed and has a mass of 750 kg. How fast must the car be going to cause both the truck and car to stop when they collide? (Hint: For both the car and the truck to stop, the car and trucks momentum must be equal.)

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.