a man covers half distance with speed v and remaining half with speed V1 and V2 for equal time interval. find average Speed.
a)2(v1 v2 + v2 v + v1 v)
v1+v2+v
b) 2v( v1 + v2 )
v1+v2+2v
c) 2 (v1 v2 v)
v1 v + v2 v + v1 v2
d) v1+v2
v
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Answer:
)2(v1 v2 + v2 v + v1 v)
v1+v2+v
b) 2v( v1 + v2 )
v1+v2+2v
c) 2 (v1 v2 v)
v1 v + v2 v + v1 v2
d) v1+v2
v
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