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3 years ago

A car moving 20 m/s accelerates at 3 m/s for 5 seconds. what is the final velocity?

Physics

1 answer:

Yuliya22 [10]3 years ago

3 0

The final velocity is of the car is 35 $ms^{-1}$ .

<u>Explanation:</u>

The car initially moves in the velocity 20 $ms^{-1}$ . It then accelerated by 3 $ms^{-2}$ for 5 seconds.

The formula to find final velocity, $v_f=v_i+a(t).$

$v_i$ : initial velocity of the car.

a: acceleration rate.

t: time.

$v_f$ : final velocity

From the given information,

$v_i$ = 20 $ms^{-1}$ .

a=3 $ms^{-2}$ .

t= 5s.

$v_f$ =20+3(5).

=20+15.

=35 $ms^{-1}$ .

∴The final velocity of the moving car is 35 $ms^{-1}$ .

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