Question

a car traveling at +7.0 m/s accelerates at a rate of +0.80 m/s^2 for an interval of 2.0 s.Find the VF

Answer 1

Given:

The formula of VF is v=u+at

Coressponding to:

v= final velocity

u= initial velocity which is 7m per second

a= acceleration which is 0.08m per second^2

t= time which is 2.0 seconds

Substitute:

y=u+a

y=7+(0.80*2)

7+1.6=8.6

VF=8.6 m/second^2

Answer 2

To solve this type of problem, the formula for linear-motion and acceleration will be used. The formula is stated below:

Vf = Vi + at

Where:

Vf = final velocity
Vi = initial velocity
a = acceleration
t = time

Substituting the given values into the equation:

Vf = 7 m/s + (0.8 ./s^2)*(2 s)
Vf = 8.6 m/s