1) The direction of the ball is changing? a) True or Yes b) False or No 2) The velocity in the X direction is changing with time? a) True b) False 3) The velocity in the y-direction is changing with time a) True b) False 4) The value of velocity after time t is changing because of a) Velocity in x-direction b) Velocity in the y-direction 5) The value of the velocity in y direction is changing due to _________? a) Airflow b) Gravity c) Shape of ball d) Size of ball 6) If wind blow in the same direction of the projectile what will increase a) Maximum height b) Velocity in y-direction c) Velocity in the X direction d) Range 7) If wind blow in the opposite direction ( air resistance ) what will change a) Maximum height b) Velocity in x-direction c) Range d) Time

Projectile motion

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