Question

Q :- A marble is dropped into a friction less U-tube as shown in the figure above.
If the semicircular tube has mean radius 5 cm and the mass of the ball is 2 gram, find its velocity at the bottom of the tube. (g = 10 ms²)


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Answer 1

Answer:

assume it to be pendulum problem

Explanation:

delu+delk=0

delk=-delu

delk=Wgravity

1/2mv^2=mgl

v=root 2gl

v=1m/sec

Answer 2

Three of the limestones compare favorably with the highest grade of high-calcium limestones being used at the present time; the average calcium (plus magnesium) carbonate content is 98.5 percent (the range is 97.7 to 99.1 percent).