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General
Easy
Question
A block of mass M on a horizontal smooth surface is pulled by a load of mass M 2 by means of a rope AB and string BC as shown in the figure. The length & mass of the rope AB are L and M 2 respectively. As the block is pulled from AB = L to AB = 0 its acceleration changes from
The correct answer is:
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Two particles of equal mass have velocities 
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The diagram to the right shows the velocity-time graph for two masses R and S that collided elastically. Which of the following statements is true?
(I) R and S moved in the same direction after the collision. (II) Kinetic energy of the system (R & S) is minimum at t = 2 milli sec. (III) The mass of R was greater than mass of S.
The diagram to the right shows the velocity-time graph for two masses R and S that collided elastically. Which of the following statements is true?
(I) R and S moved in the same direction after the collision. (II) Kinetic energy of the system (R & S) is minimum at t = 2 milli sec. (III) The mass of R was greater than mass of S.
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A wave represented by the equation y = A cos (kx –wt) is superimposed with another wave to form a statioary wave such that the point x =0 is a node. The equation of the other wave is:
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Physics-General
