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Suppose that the mass of the ball was doubled and that the mass of the pendulum...

Suppose that the mass of the ball was doubled and that the mass of the pendulum was also doubled in some way that left the distance from pivot point to center of mass unchanged. If the muzzle velocity of the spring gun with the new ball was also unchanged, how would the angle through which the pendulum swings change?

Please choose one

(a) It would increase

(b) It would stay the same

(c) It would decrease

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Answer #1

when both mass and length are douvbled

from the period of pendulum

T = 2pi sqrt(L cos theta)/g

so theta will nort change

so otion B is corrrect

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