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Home Q & A Board Science-Related Homework Help Physics
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mikael mikael
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10 years ago

 
A car of mass  1028 kg collides head-on with a parked truck of mass 2000 kg. Spring mounted bumpers ensure that the collision is essentially elastic. If the velocity of the truck is 17 km/h (in the same direction as the car's initial velocity) after the collision, what is the initial speed of the car? 
A)
 
25 km/h 
B)
 
50 km/h 
C)
 
38 km/h 
D)
 
13 km/h 
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padrepadre
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10 years ago
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mikael Author
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#2
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10 years ago
Thanks a lot, really helps.
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