At t=0, one toy car is set rolling on a straight track with initial position 15.0 cm, initial velocity 23.50 cm/s, and constant acceleration zero. At the same moment, another toy car is set rolling on an adjacent track
with initial position 10.0 cm, initial velocity 15.50 cm/s, and constant acceleration 2.4 cm/s2. (a) At what
time, if any, do the two cars have equal speeds? (b) What are their speeds at that time? (c) At what time(s), if
any, do the cars pass each other? (d) What are their locations at that time?

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.