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Exercise - 03

Practice Exercise

  1. A particle moves along the x-axis from \(x_i\) to \(x_f\) which of the following values and final coordinates. which results in the displacement with largest magnitude?

  2. A stone is dripped from the top of a cliff of height \(30m\). At the same instant another stone is projected vertically upward, from the ground with a speed of \(30m/s\). The two stones will cross each other after a time

  3. Which of the following must always be true?

    • If an object's acceleration is constant, then it must move in a straight line
    • If an object's acceleration is zero, then its speed must remain constant.
    • If an object's speed remains constant, then its acceleration must be zero

  4. A stone is throw n horizontally, with an initial speed of \(30m/s\) from a bridge. Find the stone's total speed when it enters the water 4 seconds later. (Ignore air resistance.)

  5. A baseball is throw vertically into the air. The acceleration of the ball at its highest point is:

  6. A feather, initially at rest, is released in a vacuum \(12m\) above the surface of the earth which of the follow statements is correct

  7. The displacement time graph for a particle moving in a straight line is shown below, The accelerations of the particle during the intervals \(OA\), \(AB\), \(BC\) and \(CD\) are

  8. A baseball is hit straight up and is caught the catcher \(2.0s\) later. The maximum height of the ball during this interval is:

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