Question

A car starts from rest and picks up a velocity of 20 m/s in 10 seconds. Calculate the acceleration of the car.

Answer 1

The acceleration of the car is, $\mathrm{a}=2 \mathrm{~ms}^{-2}$

What is acceleration?

• Acceleration, rate at which velocity changes with time, in terms of both speed and direction.
• A point or an object moving in a straight line is accelerated if it speeds up or slows down.

What is acceleration unit?

• Unit of acceleration is the metre per second per second (m/s2).
• Definition. The snewton is that force which, when acting on a mass of one kilogramme, produces an acceleration of one metre per second per second.

According to the question:

Initial Velocity of car (u) = 0 m/s

Final velocity of car (v) = 20 m/s

Time taken by car (t) = 10 seconds

We know the formula to find the acceleration.

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

Where,

a is Acceleration

v is Final velocity

u is initial velocity

t is time taken

PuttingValues

$\begin{aligned}&a=\frac{20-0}{10} \\&a=\frac{20}{10} \\&a=2 \\&\Rightarrow a=2 \mathrm{~ms}^{-2}\end{aligned}$

Hence, The acceleration of the car is, $\mathrm{a}=2 \mathrm{~ms}^{-2}$

Learn more about acceleration here,

https://brainly.in/question/4307443?msp_poc_exp=5

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