Question

A car is moving wiTh a speed of 27 m/s down a long, straight road. When it is 130 m from a traffic light, the light turns red. If the acceleration is -2.8 m/s^2, how much time will it take for the car to stop?

Answer 1

The car will take approximately 9.64 seconds to stop.

Step-by-step explanation:

To calculate the time it will take for the car to stop, we can use the equation:

v = v0 + at

Where v is the final velocity, v0 is the initial velocity, a is the acceleration, and t is the time.

1. Given:
2. Plugging in the values, we get:
3. Therefore, it will take approximately 9.64 seconds for the car to stop.