A car travels at a speed of 60 miles per hour in a northward direction for 5 minutes. It then travels at a speed of 72 miles per hour in an eastward direction for 10 minutes. (a) What is the speed of the car for the first 5 minutes, in meters per second ? (b) What is the speed of the car for the last 10 minutes, in meters per second ? (c) What is the total displacement of the car in meters ? (d) What is the total velocity of the car in meters per second ?

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