10. A military jet flies horizontally with a velocity of 450 m/s and 20,000 m above the ground. When the jet is straight above an artillery gun a shell is fired. Assuming the shell hits the jet. a. Calculate the horizontal component of the initial velocity of the shell. b. Calculate the vertical component of the initial velocity of the shell.

E14. A ball rolls off a table with a horizontal velocity of 5 m/s. If it takes 0.6 seconds for it to reach the floor, a. What is the vertical component of the ball’s velocity just before it hits the floor? (Use g = 10 m/s^2 .)b. What is the horizontal component of the ball’s velocity just before it hits the floor?

7. A projectile is fired horizontally at 9 m/s from a 7.2 m high wall. a. Find its speed when it reaches the ground. b. At what angle does it hit the ground?

1. In a practice session, Iris hits a ball horizontally with a speed of 36 m/s from a height of 3.1 m. The ball travels until it hits the ground. a. Determine the time the ball is in the air. b. Determine the horizontal distance traveled by the ball. c. Calculate the ball’s velocity as it hits the ground.

While playing “Angry Bird”, Red was shot with an initial speed of 17 m/s at an angle 20° abovethe horizontal. The bird moves along parabolic trajectory until it reaches its target. a. Calculate the time needed by Red in the air.b. Deduce the time taken by Red to reach the highest point.c. Calculate the range of Red.d. Calculate the x and y components of the final velocity of Red.e. Deduce its final speed .

8. The hole on a level, elevated golf green is a horizontal distance of 145 m from the tee and at an elevation of 12.3 m above the tee. A golfer hits a ball at an angle of 8.7° above the horizontal and makes a hole-in-one! What was the initial speed of the ball? m/s 60 ssf60 * ssf60 ssfondle ssf60 sste ƒ60 ssf60*** 09Jss

4. A ball is shot from a cannon at 50 m/s at an angle of 30° above the horizontal. a. Draw a labeled diagram with all relevant information. Note directions you chose to be +x and +y. b. How far has the ball traveled horizontally when it reaches its highest point in the flight? How high is it at this point? c. What is the speed of the ball at the highest point in its flight?

1. A ball is thrown upwards with an initial velocity of ; = 44 m/s at an angle of above the horizontal. It travels a distance Ar = 75 m in the horizontal direction and lands at its original height. What is 0? (Hint 1: examine the ball's motion in both the x and y directions. Hint 2: you may need to use that sin(0) cos(0) = (1/2) sin(20). Hint 3: There are two solutions to this problem; try to find both.) Take g = 9.81 m/s² and show all your work.

A projectile is fired with an initial speed of 36.6 m/s at an angle of 44.0 degrees above the horizontal on a long flat firing range. C.Determine the total horizontal distance covered (that is, the range). D.Determine the speed of the projectile 1.10 ss after firing.

9: An archer fires an arrow straight up into the air with a speed v0=35.6m/s. Neglect air resistance.   a. Find the maximum height, hℎ, in meters, reached by the arrow.  b.  In terms of known quantities, write an expression for the time the arrow is in the air until it returns to launch height.