Marco wants to buy the used sports car with the greatest acceleration.
Car A can go from 0 m.s-1 to 18,9m.s-1 in 4,00 s. Car B can accelerate from 0 m.s-1 to 22,4 m.s-1 in 3,50 s. Car C can go from 0 to 26,8 m.s-1 in 6,00 s. Rank the three cars from greatest
acceleration to least.
Car B
Car A
Car C
Required
2 points
2
Question 2
2.
The table shows the velocity of a student walking down the hallway between
classes.
1. What is his acceleration between t = 10,0 s and t = 20,0 s? Answer: _______ m.s-2
2. What is his acceleration between t = 60,0 s and t = 61,0 s? Answer: _______ m.s-2
Required
1 point
1
Question 3
3.
What quantity is the rate of change of velocity?
Required
1 point
1
Question 4
4.
The velocity vs time graph for the motion of a car on a straight road is shown in the graph. Assume that the car starts at the origin 𝓍 = 0 at time t = 0.
If the car's initial velocity is east, then after 10 s is the car's position east or west from its starting point?
Required
1 point
1
Question 5
5.
The velocity vs time graph for the motion of a car on a straight road is shown in the graph. Assume that the car starts at the origin 𝓍 = 0 at time t = 0.
During which time interval is the car speeding up?
Required
2 points
2
Question 6
6.
The velocity vs time graph for the motion of a car on a straight road is shown in the graph. Assume that the car starts at the origin 𝓍 = 0 at time t = 0.
If the car's initial velocity is east, during which time interval is the acceleration west? To answer, complete this statement:
From _______ seconds to _______ seconds.
Required
1 point
1
Question 7
7.
Which swimmer swam the furtherest?
1 point
1
Question 8
8.
When was the object experiencing constant acceleration?
Select all that apply.
Required
1 point
1
Question 9
9.
Consider the following distance vs time graph showing the motion of two cars, car A and car B. How far has car A travelled when the cars pass each other?
Required
1 point
1
Question 10
10.
Consider the following distance vs time graph showing the motion of two cars, car A and car B. How do the speeds of the cars compare?
Required
1 point
1
Question 11
11.
The graph shows the velocity of an object over time.
Which one of the following options correctly shows how the acceleration of the object changes with time?