For questions #5-#14 a physical situation is described. For each situation deter

Question

For questions #5-#14 a physical situation is described. For each situation determine whether the total mechanical energy (TME) of the object (in bold-face text) is conserved, increases, or decreases. A force is applied to a root beer mug to accelerate it across a level counter top. A force is applied to a cart to raise it up an inclined plane at constant speed. A marble start from rest and rolls down an inclined plane. Ignore friction. A physics students run up a flight of stairs at constant speed. A baseball makes its flight through the air. (Neglect Fair) A coffee filter is released from rest and falls with alternate velocity. A car skids to a stop while traveling down a steep hill. A pendulum bob is tied to a string and swings back and forth. (Neglect Fair) A marble hits a note card and slides to a stop. Read the following descriptions and indicate whether the objects' KE, PE and TME increases, decreases or remains the same ( ). If it is impossible to tell, then answer???. A marble begins at an elevated position on top of an inclined ruler and rolls down to the bottom of the ruler. A marble is rolling along a level table when it hits a note card and slides to a stop. A cart is pulled from the bottom of an indine to the top of the indine at a constant speed. A physics student runs up a staircase at a constant speed. A force is applied to a root beer mug to accelerate it from rest across a level countertop. A pendulum bob is released from rest for an elevated position and swings to its lowest point. A car skids from a high speed to a stopping position along a level highway.

Explanation / Answer

First part

5.TME increases

6.TME increases

7.TME conserved

8.TME increases

9.TME Conserved

10. TME decreases

11.TME decreases

12.TME conserved

13.TME decreases

2nd part

a. KE increases , PE decreases , TME remains same

b. KE decreases , PE remains same , TME decreases

c.KE remains same , PE increases , TME increases

d. KE remains same , PE increases , TME increases

e. KE increases , PE remains same , TME increases

f.KE increases , PE decreases ,TME remains same

g.KE decreases , PE remains same , TME decreases

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