Question
A mass m moves in a vertical circle of radius R under
gravity. What is the minimum mechanical energy required to complete the circle?Solution
To complete a vertical circular motion , the mass must reach the top of the circle with non-zero speed , so that the tension at the top is ≥ 0 . The minimum speed at the top is found by setting tension = 0 and using: 
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varianc...
Select the Venn diagram that best illustrates the relationship between the following classes.
Fur, Animal, Wood
Statements:
Only a few Lotions is Bands.
Only a few Lipsticks is Lotions.
No Lipsticks is Cream.
Conclusions:
I. Ever...
In a certain code language, ‘GARDEN’ is written as ‘FYOEGQ’ and ‘GOLDEN’ is written as ‘FMIEGQ’. How will ‘ISLAND’ be written in tha...
Statement:
Some Boat are Stream
Few Stream are Captain
Only a few Captain are Boat
Conclusion:
I. Some Boat are...
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter cluster and th...
Find the wrong term in the series given below.
'58, 64, 52, 70, 44, 76, 40
What is the total distance between point X and point T?Â
Onion: Cauliflower :: Turmeric :Â ?
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