Question

A car starts from rest and reaches
a speed of 30m/s in 1 minute
calculate the acceleration of the car​

Answer 1

Explanation:

a=(30m/s -0)/(15/s)= 2m/s/s That means the speed increases by 2m/s each second. At t=0. v=0; at t=1, v=2m/s; at t=2, v=4m/s….etc.

Answer 2

Given :-

• Initial velocity of car, u = 0
• Final velocity of car, v = 30m/s
• Time Taken, t = 1 min = 60 s

To calculate :-

• Acceleration of the car

Solution :-

We know that,

$acceleration \: \frac{change \: in \: velocity}{time \: taken}$

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

$a \: = \frac{30 - 0}{60}$

$a = \frac{30}{60}$

$a = \frac{1}{2}$

$a \: = 0.5 \: m/ {s}^{2}$