Question

A small ball with a mass of 3 kg moves along with the energy curve shown to the left, while not being subjected to any non-conservative forces. At point B it has a velocity of 2.7 m/sec.

1) What is the mechanical energy of the object at point B? MB = J Your submissions: 12.9

2) What is the mechanical energy of the object at point A? MEA= J Your submissions: 12.9

3) What is the mechanical energy of the object at point D? MED= J Your submissions: 12.9

4) What is the net work done by conservative forces on the object between points B and C? WconB-C= J

5) What is the velocity of the object at point C? vC= m/sec Your submissions: 2.3

6) At which point is the velocity of the object zero?

1. point A

2. point B

3. point C

4. point D

5. point E

6. None of these points

Your submissions: 6

I need help with #4. I can't figure that one out

Answer 1

value of Mechonical eney is same cuenuwhene lork done by caservetive force change in mechauical en but Mechenuicol eweny cowstaut exeagrohone , 80 mo wank done