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The drawing shows the position of a rolling ball at two-second intervals. Which one of the following phrases best describes the motion of this ball? 1=0 1= 2s 1=4s 1=65 1= 85 1 = 10s O constant position O constant velocity O positive acceleration O decreasing position O negative accelerationTwo objects A and B accelerate from rest with the same constant acceleration. Object A accelerates for twice as long as object B, however. Which one of the following statements is true concerning these objects at the end of their respective periods of acceleration? O (a) Object A will travel four times as far as object B O (b) Object A will travel twice as far as object B O (c) Object A will travel nine times as far as object B O (d) Object A will be moving two times faster than object B O (a) and (d)Three vectors A, B, and C add together to yield zero: A + B + C = 0. The vectors A and C point in the same direction and their magnitudes are related by the expression: A = 2C. Which one of the following conclusions is correct? O B and C point in the same direction, and they have equal magnitudes O A and B have equal magnitudes and point in opposite directions O B and C point in the same direction, but B has twice the magnitude of C O B and C point in opposite directions but B has three times the magnitude of C. O A and B point in the same direction, but B has three times the magnitude of A.A ball is whirled on the end of a string in a horizontal circle of radius R at speed v. By which one of the following means can the centripetal acceleration of the ball be increased by a factor of 1.5 (or 3/2)? O Keep the radius fixed and increase the speed by a factor of two O Keep the radius fixed and increase the period by a factor of three O Decrease the radius by a factor of 3 and increase the speed by a factor of two O Increase the speed by a factor of two and decrease the radius by a factor of two O Increase the radius by a factor of six and increase the period by a factor of two