3.4b Ex3 MJ09 P2 Q2 Ball Collision Graph | AS Dynamics | Cambridge A Level 9702 Physics
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Загружено: 2021-09-13
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Example 3 - 9702/2/M/J/09: A ball B of mass 1.2 kg travelling at constant velocity collides head-on with a stationary ball S of mass 3.6 kg, as shown in Fig. 2.1. Frictional forces are negligible.
The variation with time t of the velocity v of ball B before, during and after colliding with ball S
is shown in Fig. 2.2. #9702s09p2 #AScollisionsP2 #Lv2
(a) State the significance of positive and negative values for v in Fig. 2.2.
(b) Use Fig. 2.2 to determine, for ball B during the collision with ball S,
(i) the change in momentum of ball B,
(ii) the magnitude of the force acting on ball B.
(c) Calculate the speed of ball S after the collision.
(d) Using your answer in (c) and information from Fig. 2.2, deduce quantitatively whether
the collision is elastic or inelastic.
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