Simple pendulum oscillates having small amplitude
A simple pendulum oscillates having small amplitude of 4.0o. Determine what fraction of time does it spend between -2o and 2o?
i) 1/4
ii) 1/3
iii) 1/2
iv) 2/3
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A uniform board is leaning against the smooth vertical wall. The board is at an angle over the horizontal ground. The coefficient of static friction among the ground and the lower end of the board is 0.306. Determine the smallest value for the ang
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