1. - . . The follow:ng IS the measurement made repeatedly for the time between two ticks of a metronome. 26?}. 2.47, 2.6'1, 2.50, 2.54, 2.56 Wthh IS the correct value of the best value and uncertaan 0* the given measurement? (a) 2.59+/o_05 (b) 2.485+/.o,o45 (C) 2.50+/-o.045 (d) 2.49.+/o,05 2- A car is running in a straight path with a constant acceleration from north to south. During the 3. motion, let suppose that the car passes from the point A to B with its speeds 5.00 m/szand 15-0 I'I'I/s2 respectively. It takes 3.005 to travel from A to B. What is the acceleration of the car? (a) 4.67 m/sZ (b) 3.67 m/sZ (c) 2.67 m/sZ (d) 1.57 m/s2 A ball is projected vertically upward with a speed of 7.30 m/s. How high does the ball rise? (3 = 9.80 m/sZ) (a) 3.43 m (b) 5.72 m (c) 2.72 m (d) 4.43 m When an object is projected horizontally, its flight path is influenced by both vertical and horizontal motions. Eventually the object followed a parabolic path till it hits the ground. Which of the following is the correct statement regarding the motion of the object? (a) The ball accelerates both in horizontal and vertical direction. . (b) The ball accelerates only in horizontal direction. (c) The ball accelerates only in vertical direction. (d) The ball moves with a constant speed in both directions. Suppose you take two balls A and B of the same size and climbed to the top of a tower. Let ball A is released vertically while ball B is projected horizontally and both balls hit the ground after a certain time. Which of the following represents the correct statement? (3) Both ball reach on ground at the same time