Question

Olivia is rolling down a hill on a skateboard and is accelerating at 2.4 m/s2. After 3 seconds, she runs into Reid at the bottom of the hill. If her initial velocity was 1.5 m/s, what was her velocity when she hit Reid?

Answer 1

Step-by-step explanation:

Hey there!!

According to the question,

Initial velocity (u) = 1.5m/s.

Acceleration (a) = 2.4 m/s^2.

Time (t) = 3 s.

Final velocity (v) = ?

We have,

$a = \frac{v - u}{t}$

Put all values.

2.4 = (v-1.5)/3

2.4×3 = v - 1.5

$7.2 = v - 1.5$

$7.2 + 1.5 = v$

Therefore, her final velocity is 8.7.

Hope it helps....