Two friends see each other when they are 200m
apart and start running toward each other. One
runs at 8ms and the other at 12 ms. How far
does each run before they meet?
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here d= 200m
let A and B be the friends with velocities 8 m/s and 12 m/s
distance by A : d1= vt = 8t
distance by B : d2= vt = 12t
add both eq
d1+d2=8t+12t
200= 20 t
t=10 s
so distance by A and B are 80m and 120m respectively
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