Question

A car moves along a straight path with variable velocity. When the car is at position A, its velocity is 10m/s and when it is at position B, its velocity is 20 m/s. If the car takes 5s to move from A to B, find the acceleration of the car

Answer 1

=> Accleration = 5 m/s²

Explanation:

• Initial Velocity(u) = 10 m/s

• Final Velocity(v) = 20 m/s

• Time Taken(t) = 5 s

• Accleration(a) = ?

$= > \bf \color{red}{accleration = \frac{v - u}{t} } \\ = > \frac{20 - 10}{5} \\ = > \frac{10}{5} \\ = > \boxed{5}$

Answer 2

Answer:

acceleration = change in velocity / time

= rate of change of velocity

= 20-10/5 = 2 m/s^2