Acar moves 30 mi/h to the north. every second, the velocity increases by 3 mi/h. which option represents the acceleration as a vector quantity?

30 mi/h north

30 mi/h

3 mi/h/s

3 mi/h/s north

Explanation:

It is given that, a car moves 30 mi/h to the north. Every second, the velocity increases by 3 mi/h. We know that the rate of change of velocity is called the acceleration of an object.

Here, the velocity increases at the rate of 3 mi/h. It shows the rate of change of velocity i.e. acceleration.

Since,

a = 3 mi/h/s

The direction of acceleration is as same as velocity i.e. in north direction. So, the correct option is (d) " 3 mi/h/s north ".

1. they vary with a higher number because boiling is way hotter than melting

the answer is 0.8m.

by: nicholas