Motion 2

At 10 o'clock started from place A car speed at 90 km/h. Twenty minutes after starting another car from place B at a speed 60 km/h . Distance places A and B is 120 kilometers. What time and where do they meet?

Result

T = 10:56 h Wrong answer
x =  84 km

Step-by-step explanation:

v1=90 km/h v2=60 km/h s=120 km  t1=10.00 h t2=t1+20/60=10+20/60=33110.3333 h  v1 (tt1)+v2 (tt2)=s 90 (t10)+60 (t10.333333333333)=120  150t=1640  t=1516410.933333  T=t=10.9333=10.93333=10:56 h
x=v1 (tt1)=90 (10.933310)=84 km



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