Cars 2

Opava is 360 km distance from Prešov. At 8:00 hour two cars started against each other from this cities at average speeds 88 km/h and 121 km/h.

At what hour its will meet and what distance its travel if car started from Prešov is faster?

Result

T = 9:43 hh:mm Wrong answer
s1 =  151.58 km
s2 =  208.42 km

Solution:

s1=v1t s2=v2t s=s1+s2=v1t+v2t=t(v1+v2) t=sv1+v2=36088+121=1.72 h T=8+t=9:43 hh:mm
s1=v1t=881.72=151.58 km
s2=v2t=1211.72=208.42 km



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