Acar traveling at 37m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration

Answer

The acceleration is

to the nearest tenth

Explanation

Since the car was travelling at before it starts to decelerate, the initial velocity is

.

The final velocity is , because the car came to a stop.

The time taken is .

Using the Newton's equation of linear motion,

, we find the acceleration by substituting the known values.

This implies that,

This gives us,

We divide both sides by 15 to get,

or

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.