Posted by **Sarah** on Sunday, September 3, 2006 at 9:23pm.

Consider a car making a turn at a constant speed

a) is the net force on the car zero? Why?

b) Is the velocity of the car constant? Why?

c) Is the car accelerating? Why?

a)no it's not zero. Is it because it is experianceing a net force,, which is centripetal force because it is accelerating?

b)No velocity is not constant becasue it is accelerating. Velocity is a vector(magnitude ans direction) The car is turning in a new direction so the velocity is changing. Velocity is the rate at whcich an object displacement changes

Can you explain whether my think is correct?

c)yes becasue the velocity isn't constant

Wow Sarah:

You are exactly correct!

The velocity is constantly changing because the direction is constantly changing. And it has an acceleration (also a vector) because acceleration is the change in velocity per unit time.

And there is als a force, which is also a vector, because force = mass x acceleration.

## Answer this Question

## Related Questions

- 11th grade Physics - Consider a situation in which your car, when coasting down ...
- physics - Two cars are traveling at the same constant speed v. Car A is moving ...
- Physics - Your car can accelerate at 5m/^2 without a trailer. You add a trailer ...
- physics - The Mini Cooper is rated at a maximum power of 115. hp (1 hp=746 W), ...
- physics - At the moment car A is starting from rest and accelerating at 5.0 m/s2...
- physics - If a car is accelerating downhill under a net force of 3674 N, what ...
- physics - if a car is accelerating downhill under a net force of 3674 N, what ...
- physics - If a car is accelerating downhill under a net force of 3,674N, what ...
- physics - How would I find the acceleration of a car if it traveled 1.5 meters ...
- Physics help - A car travels in a circle whose radius is 31 m, with a speed of ...