# Kinematics(displacement and Velocity)

1. Jul 11, 2009

### BlueOwl

1. The problem statement, all variables and given/known data

A car starts from a point and returns to the same point after 160 seconds. During this time the car traveled at an average speed of 10 m/s. What is its displacement? What is its average velocity? Explain your answers using a motion graph (Position - time)

2. Relevant equations

3. The attempt at a solution

Ok so I am a little confused with this one since the car starts from the same point it returns to therefore i was assuming that the displacement would be zero and considering that average velocity is displacement over change of time zero divided by 160 again the average velocity would be zero no? plz help I am really confused by the same points meaning the car is going from point A to Point A again not Point A to Point B therefore i am tottally lost maybe a hint to get me started thanks .
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

2. Jul 11, 2009

### alphysicist

Hi BlueOwl,

Those answers sound right to me.