@vedaprakash
This is an alternate easy way to solve the problem.
S
shreyas varma
@shreyas varma
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Best posts made by shreyas varma

RE: Vector
@harshalsolanki
I think 2 can't be the answer because if suppose b and c are zero, the value of a could be negative being a vector but mod can't be negative. So 1 must be answer. 
RE: Thermodynamics
@urvashi
Work=p(V2V1)
Put on the values, you will get the answer. 
RE: Probability
@piyushd
For second method, we have 3 odd nos. out of which two are placed at ends therefore 3C2 and remainingâ€‹ 5 digits out of which 2 are to be used.
Hence numerator 3C2*5C2 and denominator 7C4. First method is easier as it is simpler form of the second method.
Latest posts made by shreyas varma

RE: Circular motion
@urvashi
Magnitude will remain same and directed always towards the center of the circle. 
RE: Circular motion
@urvashi
Car is undergoing uniform circular motion, so tangential acceleration is zero and hence magnitude of velocity will be constant.