Two automobiles traveling at right angles to each other collide and stick together. Car A has a mass of 1200 kg and had a speed of 25 m/s before the collision

Car B has a mass of 1600 kg. The skid marks show that, immediately after the collision, the wreckage was moving in a direction making an angle of 40° with the original direction of car A. What was the speed of car B before the collision?
A)

16 m/s

B)

18 m/s

C)

11 m/s

D)

21 m/s

E)

14 m/s


A

Physics & Space Science

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