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​​Q. A POINT TRAVERSED (1/N) TH THE DISTANCE WITH A VELOCITY V 0 . THE REMAINING PART OF DISTANCE WAS COVERED WITH VELOCITY V 1 FOR HALF THE TIME, AND WITH VELOCITY V 2 FOR THE OTHER HALF OF THE TIME. FIND THE MEAN VELOCITY OF THE POINT AVERAGED OVER THE WHOLE TIME OF THE MOTION.

​​Q. A POINT TRAVERSED (1/N)TH THE DISTANCE WITH A VELOCITY V0. THE REMAINING PART OF DISTANCE WAS COVERED WITH VELOCITY V1 FOR HALF THE TIME, AND WITH VELOCITY V2 FOR THE OTHER HALF OF THE TIME. FIND THE MEAN VELOCITY OF THE POINT AVERAGED OVER THE WHOLE TIME OF THE MOTION.

Grade:Select Grade

6 Answers

Manabendra Nath Gaine
12 Points
6 years ago
4N/(4V0+N-1)
Bharat Makkar
34 Points
6 years ago
ITS ABSOLUTELY WRONG ANSWER. PLEASE TELL THE RIGHT ANSWER ALONG WITH PROPER EXPLANATION.
madhur mehta
18 Points
6 years ago
THE ANSWER IS:
 
NV0 (V1+V2)/[2(N-1) V0 +V1+V2]
Bharat Makkar
34 Points
6 years ago
explanation please althought the ans is correct
Manabendra Nath Gaine
12 Points
6 years ago
Yes,I am wrong. The 
Manabendra Nath Gaine
12 Points
6 years ago
Yes, I am wrong. The right answer is explained below:                                                                                          Let total distance = S, Time required(t1)Total time to cover the distance with velocity V0 = S/NV0. Remaining part of the distance = S – S/N =S(N-1)/N. If this distance is covered in time 2t,                                                              V1.t+V2.t =S(N-1)/N .  Therefore t = S(N-1)/N(V1+V2).                                                           So Vavg = Net displacement/Total time = S/(S/NV0 +2S(N-1)/N(V1+V2))                                                        = NV0(V1+V2)/ (V1+V2+2V0(N-1))

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