Objects have _______ if they are in motion and/or if they are at some position relative to a zero potential energy position
6 points
6
Question 2
2.
Give one example of mechanical energy, and then justify why your example definitly has mechanical energy.
1 point
1
Question 3
3.
In order for the Ski Jumper to go above 100m, there must be an external force acting upon him.
6 points
6
Question 4
4.
Defend your answer to #3 by providing an explaination.
3 points
3
Question 5
5.
Total Mechanical Energy = _______ ______ _______
Other Answer Choices:
Ffriction
TMEf
PE
+
PEgrav
x
TMEi
KE
TME
F
6 points
6
Question 6
6.
KE to PE or PE to KE? How do you know?
4 points
4
Question 7
7.
A 1200-kg car traveling with a speed of 25 m/s skids to a stop. The car experiences a 1000 N force of friction. Determine the stopping distance of the car.
4 points
4
Question 8
8.
A shopping cart full of groceries is sitting at the top of a 3.0-m hill. The cart begins to roll until it hits a stump at the bottom of the hill. Upon impact, a 0.5-kg can of peaches flies horizontally out of the shopping cart and hits a parked car with an average force of 100 N. How deep a dent is made in the car (i.e., over what distance does the 100 N force act upon the can of peaches before bringing it to a stop)?