the change in velocity of a car that starts at rest and has a final velocity of 20m/s north
what does it mean
Mass times change in velocity is the momentum change magnitude. The direction of the momentum change is north.
You cannot compute the answer without knowing the mass of the car.
Well, the change in velocity is 20 - 0 = +20 m/s North
To find the change in velocity of a car that starts at rest and has a final velocity of 20 m/s north, we need to calculate the difference between the final velocity and the initial velocity. Since the car starts at rest, the initial velocity is 0 m/s.
The formula to calculate change in velocity is:
Change in velocity = Final velocity - Initial velocity
Given:
Final velocity = 20 m/s
Initial velocity = 0 m/s
Substituting the values into the formula, we have:
Change in velocity = 20 m/s - 0 m/s
Change in velocity = 20 m/s
Therefore, the change in velocity of the car is 20 m/s north.