the distance between P and Q is 1.35km. sam travelled from Q to P at 2m/s while Tom travelled from P to Q at 2.4m/s. How many seconds will they take to meet each other.
the distance between P and Q is 1.35km. sam travelled from Q to P at 2m/s while Tom travelled from P to Q at 2.4m/s. How many seconds will they take to meet each other.
Pretend Tom is not moving and that Sam travels at (2 + 2.4) = 4.4 m/s. Calculate how long it takes Sam to get to P.
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oh thanks you. it works but i dont undertsand why i must do that? Why plus their speed together?
Think about. It's all to do with relative velocity.
The alternative is to solve the following simultaneous equations for t:
2t = x .... (1)
2.4 t = 1350 - x .... (2)
__________________ There are two things you should never try to prove: the impossible and the obvious.
The greater danger for most of us lies not in setting our aim too high and falling short; but in setting our aim too low and achieving our mark. (Michelangelo Buonarroti)
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