An object of mass 0.5 kg is whirled at the end of a string 0.8m long. If the string makes 3 revolution in 1.2 sec find the tension in the string

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Q. An object of mass

0.5

kg attached to a rod of length

0.5

m is whirled in a vertical circle at constant angular speed. If the maximum tension in the string is

5

kg wt., Calculate
(i) speed of stone
(ii) maximum number of revolutions it can complete in a minute.

Q. a string breaks under a load of 4.8 kg. A mass if 0.5 kg is attached to one end of the string 2m long and is rotated in a horizontal circle. calculate the greatest no of revolutions that the mass can make without breaking the string

Q. A

200 g

mass is whirled in a vertical circle making

60

revolutions per minute. What is the tension in the string at the top of the circle if the radius of the circle is

0.8 m

? (in

N

)

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