(chatquestion)...he he (4) 90 m (3) 80 m 18. A projectile is projected with a speed 30 m/s at an angle 30° with the vertical. The speed of the projectile when its direction of motion makes an angle 30° with the horizontal is (1) 10 m/s (2) 20 m/s (3) 10/3 m/s (4) 20/3 m/s on 19. The position-time (x-t) graph for a particle moving ual along x-axis is as shown in the graph. Average nis

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