Quiz 1 – Distance/displacement and speed/velocity.
Exercise 8
A hungry hummingbird flies forward and backward. Its motion is shown on the following
graph of horizontal position x vs. time t.
What is the instantaneous velocity of the hummingbird at t=1s?
Choose 1 answer:
Exercise 9
A badger is trying to cross the street. Its velocity v as a function of time t is given in the graph
below where rightwards is the positive velocity direction.
What is the badger's displacement Δx from t=2s to 3s?
Answer with two significant digits.
Exercise 10
Sal sprints 40m to the right in 5.5s.
What was his average velocity in m/s ?
Answer using a coordinate system where rightward is positive.
Round the answer to two significant digits.
Exercise 11
An amusement park ride travels up and down. The vertical position of the ride in meters over
time is shown below.
What is the displacement of the ride between 0s and 16s?
What is the distance traveled between 0s and 16s?
Exercise 12
As shown in the figure below, a seal and penguin are playing a fun game of catch. The
penguin swims leftward 9m then dodges rightwards another 12m. The penguin swims a total
time of 8s.
What is the penguin's average velocity during the chase?
What is the penguin's average speed during the chase?
Answer using a coordinate system where rightward is positive.
Round answer to two significant digits..