u=9 is your answer.
Hope this helps!
What are the possible dimensions for a rectangle with 12 square feet?
1 answer:
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Answer:
Step-by-step explanation:
Given
Required
How fast is the ball seem to be moving?
This question illustrates relative velocity;
Since the ball and the train moves in the same direction, the required velocity relative to the person standing behind is:
i.e. we add both velocities