A hockey puck of mass 0.44 kg is shot west at 2.20 m/s strikes a second puck, initially at rest, of mass 0.56 kg. As a result of the collision, the first puck is deflected at an angle of 40° south of west, with a speed of 1.45 m/s. What is the speed of the second puck after the collision?

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.