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A 1,600 kg car traveling north at 10.0 m/s crashes into a 1,400 kg car traveling east at 15 m/s at an unexpectedly icy intersection. The cars lock together as they skid on the ice. What is their speed after the crash?

A. 18 m/s
B. 8.8m/s
C. 26m/s
D. 12m/s

Respuesta :

yashddsy26
here it is the use of vector and conservation of momentum !

so,
√(16^2+21^2) ×1000= 3000 v
v =8.8 m/s

so answer is B !

if you have any doubt, you can ask ! just comment !

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