A cannonball was launched at the speed of 175 m/s into the air at an angle of 60° above the ground. As it reaches maximum height, a wind with air current speed of 300 m/s sent the ball perpendicularly off- course. 1. What is the maximum height? 2. What is the cannonball's speed as it was knocked off-course (with respect to the air current)? 3. What is the cannonball' s resultant at coordinates (x, z) ?

6. A cannon ball is launched with a speed of 120 m/s at an angle of 30°. a. How fast is the cannonball moving when it reaches the highest point of its trajectory? b. How fast is the cannonball moving before it strikes the ground?

6. man stands on the roof of a 50 m tall building and throws a ball with a speed of 25 m/s at 40° above the horizontal. If we ignore the air resistance; a. Find the vertical and horizontal components of the ball's initial velocity. b. Find the maximum height above the ground that the ball reaches. c. Find the ball velocity (in unit vector nutation) just before it strikes the ground. d. At what horizontal distance from the edge of the building does the ball strikes the ground? e. What is the vertical acceleration of the ball at the maximum height? a. Vox 19.15 m/s Voy 16.07 m/s b. y = 50+ 13.18 = 63.18 m e. c. Vx = Vox = 19.15 m/s v=vxî + vyĵ = 19.15î — 35.18ĵ d. x = 100.16 m ay = -9.8 m/s² Vy = -35.18 m S 0000000000 00 DO 00 00 vo 40° 50 m

A stone is thrown with an initial velocity of 100fps upward at 60 degrees to the horizontal. a. Compute the velocity of the stone when it is 50ft horizontally from its initial position. b. Compute the normal acceleration when it is 50ft horizontally from its position. c. Compute the radius of curvature of its path where it is 50ft horizontally from its position.