40,(II) A roller-coaster car shown in Fig. 6-41 is pulled up to point 1 where it is released from rest. Assuming no friction, calculate the speed at points 2, 3, and 4. 3 bo 4 26 m 32 m 14 m 4 2 FIGURE 6-41 Problems 40 and 50.

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Q: Don't use chat gpt

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.