Acar traveling at 15 m/s starts to decelerate steadily. it comes to a complete stop in 5 seconds. what is its acceleration ?

Explanation:

The initial velocity, u, of the car=15m/s

The final velocity, v, of the car =0m/s

Time, t, taken for the car to come to a stop=5s

Acceleration is calculated by,

By substitution,

The negative sign implies that the car has decelerated.

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers