1. A ball rolling down a ramp accelerales from 0 cm/s to 40 cm/s in 10 seconds. What is ils acceleralion?

4 cm/s².

Explanation:

From the question given above, the following data were obtained from it:

Initial velocity (u) = 0 cm/s

Final velocity (v) = 40 cm/s

Time (t) = 10 s

Acceleration (a) =?

Acceleration is simply defined as the rate of change of velocity with time. Mathematically, it is expressed as follow:

Acceleration (a) = Change in velocity /time

Acceleration (a) = [final velocity (v) – initial velocity (u)] /time (t)

a = (v – u) /t

With the above formula, we can obtain the acceleration of the ball as follow:

Initial velocity (u) = 0 cm/s

Final velocity (v) = 40 cm/s

Time (t) = 10 s

Acceleration (a) =?

a = (v – u) /t

a = (40 – 0) / 10

a = 40/10

a = 4 cm/s²

Therefore, the acceleration of the ball is 4 cm/s²

car a and b are moving in opposite directions

plz mark.me the brainliest i rlly need this kind of yours in exchange

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation: