Physics > 2019 > 23
WASSCE
An 800kg car moving at 80 kmhr-1 collides with a 1200kg car moving at 40kmhr-1 in the same direction. If the cars stick together, calculate their common velocity.
A.
60 kmhr-1
B.
8 kmhr-1
C.
40 km hr-1
D.
56 km hr-1
Answer: D
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