Question

starting from rest has and acceleration 0.3 m/s , calculate the velocity and distance travelled by a car after 2 minutes.​

Answer 1

`v(t=120)=36m/s\\\\d(t=120)=2160 m`

Step-by-step explanation:

t=2minutes = 120 seconds:

t=120s

a=0,3m/s²

The cart starting from rest, then: vo=0m/s

We know that:

`v(t)=vo+at`

`v(t)=0,3t`

After t=120 s the velocity are:

`v(120)=0,3*120\\v(120)=36m/s`

We know that:

`d(t)=do+vo*t+(a)/(2)*t^(2)`

vo=0m/s

do=0m/s

The distance after t=120s are:

`d(120)=0,3*(120*120)/(2) \\d(120)=36*60\\d(120)=2160 m`