Acar came to a stop from a speed of 35 m/s in a time of 8.1 seconds. what was the acceleration of the car? a. -10.2 m/s b. -5.11 m/s c. -4.32 m/s d. -9.80 m/s

The acceleration of the car is -4.32 m/s^2.

(C) is correct.

Explanation:

Given that,

Speed of car u= 35 m/s

Time t = 8.1 s

We need to calculate the acceleration

using equation of motion

Where, v = final velocity

u = initial velocity

t = time

a = acceleration

Hence, The acceleration of the car is -4.32 m/s^2.

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.