Answer:
-2 ms⁻²
Explanation:
Here,
Initial velocity (u) = 15 ms⁻¹
Final velocity (v) = 5 ms⁻¹
Time (t) = 5 seconds
Acceleration (a) = ?
Formula:
a = (v-u)/t
⇒ a = (5-15)/5
⇒ a = -10/5
⇒a = -2
∴acceleration of the the car was -2 ms⁻²
Note:
The answer is negative because of decreasing the velocity . That means it is deceleration.
