Question

A car initially at rest begins to move and reaches velocity of 72 km/h after being pushed for 10 s. What is the acceleration of the car.​

Answer 1

Answer:

Acceleration of the car is $2 m/s^2$

Explanation:

Initial velocity of the car u=0 m/s (at rest)

Final velocity $v=72 km/hr =72 \times\frac{1000}{3600} =20 m/s$

time taken t = 10 s

From the equation of motion , we have

$v=u+at\\20= +a \times 10\\a=\frac{20}{10} \\a=2 m/s^2$

Acceleration of the car is $2 m/s^2$

Answer 2

Answer:

2m/s²

Explanation:

the acceleration of the car is 2m/s²