Going at the same speed, the car traveled 120 km. Write down the formula for the dependence of time, t, from the speed, v. Find t (60), t (45), t (50).

For example, a car was traveling at 60 miles per hour (mph) and hit another car, but there was hardly a dent. The reason is that the second car was traveling in the same direction at 59 mph, so the car was travelling only 1 mph with respect to the second car when the collision Speed is how fast an object is going with respect to an object. Velocity is a measure of the speed in a given direction. You can say the top speed of an airplane is 300 kilometers per hour (kph). But its velocity is 300 kph in a northeast direction. We distinguish between speed and velocity because if you add the speeds of multiple objects, their directions are important. For example, the velocity of an airplane with respect to the ground would vary according to the direction of the wind.