Question 59: A heavy car A of mass 2000 kg travelling at 10 m/s has a head-on collision with a sports car B of mass 500 kg. If both cars stop dead on colliding, what was the velocity of car B ? Lakhmir Singh Physics Class 9

Question 59: A heavy car A of mass 2000 kg travelling at 10 m/s has

1.	Question 59: A heavy car A of mass 2000 kg travelling at 10 m/s has a head-on collision with a sports car B of mass 500 kg. If both cars stop dead on colliding, what was the velocity of car B ? Lakhmir Singh Physics Class 9
Answer» 0kg m2= 500 kg u1= 10 m/s u2= xv1= 0 m/s V2= 0 m/sm1u1 +m2u2 = M1V1 +m2v2200010 + 500x = 2000 0 +500 020000 + 500x = 0 +0500x = -20000x = -20000/500x = 40 m/sans -- u2= 40 m/s

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Question 59: A heavy car A of mass 2000 kg travelling at 10 m/s has a head-on collision with a sports car B of mass 500 kg. If both cars stop dead on colliding, what was the velocity of car B ? Lakhmir Singh Physics Class 9

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