Question

A car is moving with an initial speed of u=46m/s, and it comes to a stop, which means its final speed v=0m/s. You need to find the acceleration of the car (a).

Answer 1

The acceleration of the car is 0 m/s², as the car is not accelerating or decelerating.

Step-by-step explanation:

To find the acceleration of the car, you can use the equation v² = u² + 2as, where v is the final velocity, u is the initial velocity, a is the acceleration, and s is the displacement. In this case, the initial velocity (u) is 46 m/s, the final velocity (v) is 0 m/s, and the displacement (s) is unknown. Since the car comes to a stop, its displacement is 0. Plugging these values into the equation, we get:

0² = 46² + 2a(0)

0 = 2116 + 0

2116 = 0

Therefore, the acceleration of the car is 0 m/s². This means that the car is not accelerating or decelerating, it is moving at a constant speed.