If by distance you mean how far did it travel, then it would be 3/4 of the circumference:
(.75)2πr = (.75)2π(0.7m) = 1.05π m = 3.3m
If by displacement you mean how far is it from its starting point, realize that that distance is the base of an isosceles triangle whose two other sides are formed by the radius of the circle. And since it is a right isosceles triangle, the two other angles are 45° each, meaning that the displacement if the hypotenuse and is equal to the radius times the square root of 2.
D = (0.7m)√2 = 0.99m
Josna J.
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Report
07/09/18
Dex G.
You can get the displacement by applying pythagorean theorem. c2=a2+b2 Whereas, c2 is the hypothenus of the triangle form by connecting the distance of the starting point and end point of the circle. So 0.7^2 + 0.7^2 will yield 0.49+0.49=0.98. To cancel the squared on c, find the square root of 0.98 which is 0.9899494936611665. Round it off 0.99m South. Since displacement is a vector, it should have directions.
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02/26/19
Josna J.
07/09/18