1 . KINEMATICS 1.16 A cricket ball is hit for six and follows height, and Position C just before the ball (h) What is the component of vc in the the path shown in Figure 1.12. The initial lands. If the ball is hit at time t = 0 s then: y-direction? velocity of the cricket ball is 20 m s- at What is the acceleration of the ball an angle of 450 above the horizontal. (a) What is the component of UA in the (i) at Position C? x-direction? (b) What is the component of UA in the 1.17 The following question relates to y-direction? (c) What is the acceleration of the ball the trajectory of the cricket ball in Prob. 20 m s-1 at Position A? lem 1.16. 45 (d) What is the component of Up in the (a) What is the maximum height that A -> x x-direction? the ball reaches? e What is the component of Up in the (b) How long is the ball in the air? Figure 1.12 y-direction? (f ) What is the acceleration of the ball (c) How far away from its initial posi- The cricket ball is shown at 3 positions at Position B? tion does the ball land? along its trajectory: Position A just after (8) What is the component of vc in the (d) What is the velocity of the ball just it is hit, Position B at the balls maximum x-direction? before it lands