A 2.15 kg pendulum bob on a string 1.50 m long, is released with a velocity of 3.75 m/s when the support string makes an angle of 37.5* with the vertical. What is the velocity of the bob at the bottom of the swing?

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Jamar FerryLv2

29 Mar 2019

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Q: A simple pendulum has a length of 0.75 m and a bob whose massis
0.15 kg.The bob is released from an angle of 25Âº relative to avertical reference line
(Neglect friction and the mass of the string.)
(a) What is vertical height of the bob when it is released?
(b) What is the speed of the bob at the bottom of the swing?

Consider a pendulum bob on a string attached to the ceiling. THelength of the pendulum is 1.00m. The bob is pulled off to the left,to a small angle with the vertical, and let go. The string is cutinstantly by a razor blade at opposite end of the swing. The flooris 0.750m below the bob when the string is cut.

a) What is the bob's velocity when the string is cut.Explain.

b) determine the total amount of time from whenthe bob is first released, to when the bob hits the floor. (thinkof it in two parts: Before it is cut, it is simple pendulum. Afterit is cut, the bob is in freefall)

Thanks for your help, it is greatly appreciated!

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A 2.15 kg pendulum bob on a string 1.50 m long, is released with a velocity of 3.75 m/s when the support string makes an angle of 37.5* with the vertical. What is the velocity of the bob at the bottom of the swing?

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