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Q. An ocean liner sailing at 43.40 m/s is caught in a current flowing 11.20 m/s at 24.7 degrees east of south what is the direction (angle) of the overall speed of ocean liner?

Q. A 2200-kg sport utility vehicle travelling at 84-km/h can be stopped in 0.25 s if it hits a concrete wall. Suppose a 60 kg person was in the car that hit this wall. The velocity of the person equals that of the car both before and after crash, and the velocity changes in 0.25 s.

what is an average force exerted on the person?

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