SOLUTION: Object A travels at a constant velocity of 2.0 m/s and object B travels in the same direction at a constant velocity of 3.0 m/s. If object B starts 1.0 min after object A, how long
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-> SOLUTION: Object A travels at a constant velocity of 2.0 m/s and object B travels in the same direction at a constant velocity of 3.0 m/s. If object B starts 1.0 min after object A, how long
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Question 1087384: Object A travels at a constant velocity of 2.0 m/s and object B travels in the same direction at a constant velocity of 3.0 m/s. If object B starts 1.0 min after object A, how long will it take object B to catch object A? Answer by ikleyn(52776) (Show Source):
You can put this solution on YOUR website! .
You forgot to mention in the condition that both objects A and B started from the same point.
Then the time under the question is
t = = = 120 seconds = 2 minutes.
The numerator 2*60 is the distance in meters from the starting point to A at the moment when the object B starts his move
(2 minutes = 120 seconds after A started its move).
So the numerator is the "ahead distance" between A and B when B started catching A.
The denominator (3.0 - 2.0) = 1 m/s is the relative speed of the body B to body A.
