The problem is:

If a car is initially at a velocity of 25 m/s and starts accelerating at a rate of 1.5 m/s^2 then what is the car's instantaneous velocity 5 seconds later?

would it be 32.5 m/s, because 1.5X5=7.5, +25= 32.5 m/s?

please explain why this is or isn't correct.

Thanks you so much!

## Answers (2)

yes your answer is right.

It can be calculated correctly as follow...

Newton's first equation of motion is...

V = U + a.t

here V- final velocity,

U= initial velocity

a- acceleration

t - time

Putting the values

V= 25+(1.5*5)

=25+7.5

= 32.5 m/s

Reference:MyselfYou are correct.

V2 = V1 + at = (25m/s) + (1.5m/s/s)(5s)