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A BALL HAVING MASS 0.5kg MOVING WITH A VELOCITY 20M/S IS CAUGHT BY ARUN HE STOPPED THE BALL IN 5S BY MOVING HIS HANDS BACKWARD. FIND THE INITIAL MOMENTUM FIND THE FINAL MOMENTUM |
| (i)Velocity of the cricket ball=20m/s Mass of cricket ball=0.5kg Momentum=Mass*velocity=0.5kg*20m/s=10 kg m/s (ii)After holding the ball with the hand and move the hand back to a little and made the ball stationary in 5 s then the momentum is zero.Because when stopped the ball velocity decreases to zero.When velocity tends to 0 momentum will be also zero. |
