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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!
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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: Myself
You are correct.
V2 = V1 + at = (25m/s) + (1.5m/s/s)(5s)