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Motion in a Pla...

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  • Question 1
    4 / -1

    The speed of the particle at time= 6 sec

  • Question 2
    4 / -1

    Suppose that two objects A and B are moving with velocities (each with respect to some common frame of reference). Letrepresent the velocity of A with respect to B. Then

  • Question 3
    4 / -1

    Rain is falling vertically with a speed of 30 ms−1. A woman rides a bicycle with a speed of 12 ms−1 in east to west direction. In which direction she should hold her umbrella?

  • Question 4
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    A river is flowing from west to east with a speed 5 ms−1. A swimmer can swim in still water at a speed of 10 ms−1. If he wants to start from point A on south bank and reach opposite point B on north bank, in what direction should he swim?

  • Question 5
    4 / -1

    A girl riding a bicycle with a speed of 5 ms−1 towards north direction, observes rain falling vertically down. If she increases her speed to 10 ms−1, rain appears to meet her at 45∘ to the vertical. What is the speed of the rain?

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