armsteadsandra2 armsteadsandra2

18-01-2020
Physics

contestada

If a train going 60 m/s hits the brakes, and it takes the train 1 minute 25 seconds to stop, what is the
train's acceleration?

Respuesta :

fallonsullivan5 fallonsullivan5

18-01-2020

0.706 m/s/s because acceleration equals velocity over time

Answer Link

Chelboy Chelboy

18-01-2020

Answer:0.71m/s^2

Explanation:

But we have to convert 1minute 25seconds to seconds.

Since 60seconds=1minute 1minute 25seconds=85seconds

Acceleration=(final velocity-initial velocity)÷time

Acceleration=(0-60)÷85

Acceleration=-60/85

Acceleration=-0.71m/s^2

The minus sign indicate that the car is decelerating

Answer Link

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