Which statement best explains the difference between velocity and speed? a) speed is a vector and requires a direction to completely describe it. b) velocity is a vector and requires a direction to completely describe it. c) speed is measured in units of meter and velocity is measured in units of meters per second. d) velocity is measured in units meters per second and speed is measured in units of miles per hour.

Answer by mimiwhatsup: B) Velocity is a vector and requires a direction to completely describe it.

Velocity is the speed and direction of an object in motion.

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.