alisaldivar5726 alisaldivar5726
  • 20-07-2022
  • Physics
contestada

A car drives 17.9 m/s east. It
accelerates at 2.88 m/s² at a
137.7° angle. How long does it
take until the car is driving directly
north?

Respuesta :

onyebuchinnaji
onyebuchinnaji onyebuchinnaji
  • 21-07-2022

The time taken for the car to drive directly north is 8.52 seconds.

Time of motion of the car

v = u + at

At 137.7° angle

v = u + a cosθ(t)

v = 17.9 + 2.88cos(137.7)t

v = 17.9 - 2.1t

when the car is directly north, v = 0

0 =  17.9 - 2.1t

2.1t = 17.9

t = 17.9/2.1

t = 8.52 seconds

Thus, the time taken for the car to drive directly north is 8.52 seconds.

Learn more about time of motion here: https://brainly.com/question/2364404

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