A person travels along a straight road for the first half time with a velocity v1, and the second half time with a velocity v2. Then the mean velocity v is given by
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
V¯=V1+V22
b
2V¯=1V1+1V2
c
V-=V1V2
d
V-=V2V1
answer is A.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
Let for the first half time f, the person travels a distance s1. Hencev1=S1t or S1=V1tFor second half time, V2=S2t or S2=V2tNow, V= Total displacement Total time =s1+s22t=V1t+V2t2t=V1+V22
A person travels along a straight road for the first half time with a velocity v1, and the second half time with a velocity v2. Then the mean velocity v is given by