A softball pitcher is throwing a pitch. At the instant shown, the ball is movingin a circular arc at a steady speed. At this instant, the acceleration isA. Directed up.B. Directed down.C. Directed left.D. Directed right.E. Zero.

9. You launch a projectile toward a tall building, from a position on the ground 32.4 m away from the base of the building. The projectile s initial velocity is 79.0 m/s at an angle of 30.9 degrees above the horizontal. At what height above the ground does the projectile strike the building?  38.2 m  13.5 m  18.3 m  47.7 m

2. A particle moves in uniform circular motion, over a horizontal xy- plane. At one instant it moves through the points (2.0 m, 4.0 m) with a velocity of -6.00i m/s and an acceleration of 18.0j m/s?. a) Draw the circular path of the particle and label the velocity vector and the acceleration vector. b) Calculate the x and y-coordinates of the center of the circular path. c) Calculate the period of rotation.

2. A child standing at a third story window (25 meters above the ground) throws a baseball at an angle of 30° above the horizontal with an initial velocity of 20 m/s. How far from the building does the ball hit the ground?

3. A rocket was launched with a speed v = 150 m/s and an acceleration of 425 m/s² at an angle a = 80°, determine the rocket's rate of increase in speed and its normal acceleration. Also, determine the radius of curvature of its path.

6. You launch a projectile with an initial speed of 48.8 m/s from the top of a building 66.2 m above the ground, at an angle of 45.1 degrees above the horizontal. How far from the base of the building does the projectile land on the ground?  242.8 m  269.8 m  370.9 m  296.7 m

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10. On level ground, a football is kicked up at a certain angle. The ball is in the air 2.0 s and strikes the ground 30.0 m from the thrower. What was the ball's total initial Velocity? (Find magnitude and direction) l??

An object is doing uniform circular motion with a radius of 0.45 m, 50 turns per minute, how much is the speed of the object? 22.5 m/s 2.83 m/s 4.71 m/s not enough informatio to calculate

12. An airplane turns slowly for 9.2 s horizontally. The final velocity of the plane is 3.6 X 10 km/h [N]; the average acceleration during the turn is 5.0 m/s [W]. What was the initial velocity of the plane? A