If this graph was being walked outside flipping physics' guy's house, would you ever be to the left of door? if so, when? if not, how do you know?
Required
1 point
1
Question 15
15.
Required
1 point
1
Question 16
16.
What are some easy mistakes you can see yourself making in interpreting these graphs?
Required
1 point
1
Question 17
17.
We discussed frame of reference in class. What is the frame of reference for all of the flipping physicists walking diagrams? What doesn't move?
1 point
1
Question 18
18.
1 point
1
Question 19
19.
A toy RC car is driving 2 m/s when it is picked up and put on a treadmill going 1 m/s. What happens? click all possibilities. (Assume ideal physics land, no air resistance or rolling resistance. the front of the treadmill is defined as the side of the machine you face when running.)
at 3 m/s
between 2-3 m/s
at 2 m/s
between 1-2 m/s
at 1 m/s
less than 1 m/s
the car runs off the back
the car runs off the front
the car runs off the side near the back
the car runs off the side near the front
Required
1 point
1
Question 20
20.
Rosa's boat is paddling upstream at 125 cm/s relative to the water in a river which is flowing at 50 cm/s relative to the banks of the river. What is the resultant velocity of Rosa's boat (relative to the banks)?
Required
1 point
1
Question 21
21.
you are in a car going 30 mph and a car passes you, from your frame of reference, the car is going 5 mph. how fast is the car going relative to the ground?
Required
1 point
1
Question 22
22.
Another car wizzes past you going the opposite direction. looked like he was going 100 mph. How fast do you think he was going?