Figure 8-10 is graph of Potential Energy w r t Position with no equation or indi

Question

Figure 8-10  is graph of Potential Energy w r t Position with no equation or indicated values. It has a max at (0, 10) then decreases to ~(2,5), increases to ~(4, 8), decreases to ~(5.5, 4) then increases. It asks the following:

A 2.0 kg mass is moving along the x axis. The potential energy curve as a function of position is shown in Figure

8-10. The system is conservative. There is no friction.

Refer to Figure 8-10. If the speed of the object at the origin is 4.0 m/s, what will be its speed at

7.0 m along the +x-axis?

A) 4.6 m/s B) 4.0 m/s C) 4.4 m/s D) 10 m/s E) 4.1 m/s

Refer to Figure 8-10. If the speed of the object at the origin is 4.0 m/s, what will be its speed at

4.0 m along the +x-axis?

A) 4.6 m/s B) 4.4 m/s C) 4.1 m/s D) 4.0 m/s E) 10 m/s

Explanation / Answer

A 2.0 kg mass is moving along the x axis. The potential energy curve as a function of position is shown in Figure

8-10. The system is conservative. There is no friction.

ANSWER- 2.2 m/s

Refer to Figure 8-10. If the speed of the object at the origin is 4.0 m/s, what will be its speed at

7.0 m along the +x-axis?

A) 4.6 m/s B) 4.0 m/s C) 4.4 m/s D) 10 m/s E) 4.1 m/s

ANSWER- E) 4.1 m/s

Refer to Figure 8-10. If the speed of the object at the origin is 4.0 m/s, what will be its speed at

4.0 m along the +x-axis?

A) 4.6 m/s B) 4.4 m/s C) 4.1 m/s D) 4.0 m/s E) 10 m/s

ANSWER- D) 4.0 m/s

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