pendu! lum!

Classical Mechanics Level 3

A pendulum bob has a speed of 3 m/s while passing through its lowest position. What is the speed when it makes an angle of 60 degrees with the vertical. The length of the pendulum is 0.5 meter.

Details

  • g g = 10 m/s 2 ^2


The answer is 2.0.

Parth Lohomi by Parth Lohomi , 20, India

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3 solutions

Hansraj Sharma
Jul 30, 2014

1/2(mv^2)+mgh cos60*=1/2m(3)^2 v=2

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correct!!1!

Parth Lohomi - 6 years, 10 months ago

using conservation of energy.....mgl(1-cos(60))=m(9-u^2)/2 solving we get v=2

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Satvik Pandey
Aug 13, 2014

Simply apply law of conservation of energy. 9m/2=m/2(5+V^2)

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