Question

A car travelling at a velocity of 10 m/s due north speeds up uniformly to velocity of 25m/s in 5s. Calculate the acceleration?

Answer 1

GIVEN :-

A car travelling at a velocity of 10 m/s due north speeds up uniformly to velocity of 25m/s in 5s.

Initial velocity (u) = 10m/sec

Final Velocity (v) = 25m/sec

Time taken (t) = 5sec

TO FIND :- Acceleration ( a )

SOLUTION :-

Acceleration is the rate of change in velocity per unit time.

Its unit is m/s^2

$a = \frac{(v - u)}{t} \\ \\ \\ = \frac{(25 - 10)}{5} \\ \\ \\ = \frac{15}{5} \\ \\ \\ = 3mp {s}^{2}$

THE ACCELERATION OF THE CAR IS 3m/sec^2. [ANS]

Answer 2

Explanation:

car travelling at a velocity of 10 m/s due north speeds up uniformly to velocity of 25m/s in 5s.

Initial velocity (u) = 10m/sec

Final Velocity (v) = 25m/sec

Time taken (t) = 5sec

TO FIND :- Acceleration ( a )

SOLUTION :-

Acceleration is the rate of change in velocity per unit time.

Its unit is m/s^2

\begin{gathered}a = \frac{(v - u)}{t} \\ \\ \\ = \frac{(25 - 10)}{5} \\ \\ \\ = \frac{15}{5} \\ \\ \\ = 3mp {s}^{2}\end{gathered}

a=

t

(v−u)

=

5

(25−10)

=

5

15

=3mps

2