Grade 9 - Motion

Test yourself on Grade 9 - Motion

• Which of the following statements is completely true?

• If an object is initially traveling at a velocity of 6 ms^-1, then decelerates for 2 seconds, at which point its velocity is 2 ms^-1, what is the acceleration of the object?

• A car starts from rest and accelerates at a constant rate to 30 mph in 10 seconds. What does its velocity-time graph look like?

• The car remains at this speed for another 5 seconds. What does the velocity-time graph for this motion look like?

• The driver sees a pedestrian and decelerates constantly to stop. What does the velocity-time graph look like for this motion?