Physics: Conversion of Units

Question 1

Select a street, road, or highway near your home and record the speed limit in mi/h. Convert the speed to m/s and km/h.

Question 2

A car is traveling at a constant velocity of 100 km/hr. What is the distance it will travel in one minute? Express your answer in meters.

Question 3

A car is initially traveling at 20 m/s when it accelerates to 35 m/s in a time of 5 seconds. What is the acceleration of the car in m/s²?

Question 4

Suppose a car's brakes can produce an acceleration of –7 m/s². If the car is traveling at an initial speed of 28 m/s, what is the minimum distance necessary to stop the car?

Question 5

A one-meter long rifle fires a bullet at a velocity of 800 m/s. What is the average acceleration experienced by the bullet when it is fired? (Hint: You need to find the time it takes the bullet to travel the length of the barrel first. The bullet is initially at rest in the rifle.)