valentinavmello
valentinavmello valentinavmello
  • 13-05-2020
  • Physics
contestada

Jessica Jacob is driving down the road at 35 m/s. She sees a cop and slows to 20 m/s in only 2 seconds. What was her acceleration?

Respuesta :

temdan2001
temdan2001 temdan2001
  • 19-05-2020

Answer: Acceleration = - 7.5 m/s^2

Explanation:

Acceleration (a) is the rate of change in velocity. I.e

Acceleration = (V - U)/t

U = 35 m/s

V = 20 m/a

t = 2 s

Acceleration = ( 20 - 35 )/2

Acceleration = - 15/2

Acceleration = - 7.5 m/s^2

In this case, the car is decelerating at 7.5 m/s^2

Answer Link
0614129066 0614129066
  • 26-05-2021

Answer:

-7.5

Explanation:

Answer Link

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