IP Suppose the pendulum bob in the figure(Figure 1) has a mass of 0.43kg and is

Question

IP Suppose the pendulum bob in the figure(Figure 1) has a mass of 0.43kg and is moving to the right at point B with a speed of 2.9m/s . Air resistance is negligible

(a)What is the change in the system's gravitational potential energy when the bob reaches point A?

(b)What is the speed of the bob at point A?

va= m/s

(c)If the mass of the bob is increased, does your answer to part (a) increase, decrease, or stay the same? Explain why

(d)If the mass of the bob is increased, does your answer to part (b) increase, decrease, or stay the same?   Explain why

Explanation / Answer

a)0.93J

b)2.03m/s

c)increases because the change in gravitatonal potential energy=m*g*(h2-h1)

d)there wil be no change here the speed does not depends upon the mass.

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