1. A car's velocity changes from 0 m/sec to 30 m/sec 10 seconds later. Calculate the car's average acceleration.

3 m/s²

Explanation:

Take the difference between the initial speed(0) and final speed (30) and divide it by time (10).

final speed - initial speed

——_

time.

okay i have so many questions. but the big one here is: um wt..f is this mess? ?

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.