Question

( t )
( t )
( left(v_{1}-v_{2}right)^{2}=81-72 )
( |overrightarrow{|V|-Y_{2}=3}|^{9} quad A_{n S}=3 )

# Оптим, ипс Попппи зроса v- 1: When a man travels equal distance at speeds V, and V, km/hr, his average speed is 4 km/hr. But, when he travels at these speeds for equal times his average speed is 4.5 km/hr. Find the difference of the two speeds. - 1 a..anna tho maul

Solution