A car travels three quarters of a lap on a circulartrack of a radius R. (a) The

Question

A car travels three quarters of a lap on a circulartrack of a radius R. (a) The magnitude of the displacement is (1)less than R, (2) greater than R, but less than 2R, (3) greater than2R. (b) If R=50m, what is the magnitude of displacement? Can someone show me the steps? A car travels three quarters of a lap on a circulartrack of a radius R. (a) The magnitude of the displacement is (1)less than R, (2) greater than R, but less than 2R, (3) greater than2R. (b) If R=50m, what is the magnitude of displacement? Can someone show me the steps?

Explanation / Answer

a) First the car travels 3/2Circumference=3/2(2r) and this isabout 9.4 r, so it must be 3. b) 3(50)=471.2 m

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