A Car Is Traveling East at 50 Km/h

question 9

Multiple Choice

A car is traveling east at 50 km/h.It rounds a curve,and 5 s later it is traveling north at 50 km/h.The magnitude of the average acceleration of the car is

• A)zero
• B)20 km/h · s
• C)10 km/h · s
• D)50 km/h · s
• E)None of these is correct.

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