Question

PLEASE HELP. A train is slowing down with an average acceleration of -5.0 m/s2. ( negative sign shows deceleration ). If it’s an initial velocity is 50 mi./s how far does a travel in 6 seconds?

Answer 1

Answer: The train traveled 210 miles in 6 seconds of time duration.

Step-by-step explanation:

The initial velocity of the train,u = 50 mile/s

Acceleration of the train ,a =
`-5.0 m/s^2`

Duration of time ,t = 6 seconds

Using second equation of motion :

`s=ut+(1)/(2)at^2`

`s=50 mile/s* 6 s+(1)/(2)(-5.0 m/s^2)(6s)^2=210 miles`

The train traveled 210 miles in 6 seconds of time duration.