1 .		A ball moves with a constant speed of 10 m/s at an angle of 30 degrees with the x axis, what is the x component of its velocity? [Hint]   2 m/s   5 m/s   8.7 m/s   10 m/s
2 .		What is the y component of the velocity of the ball in question 1? [Hint]   2 m/s   5 m/s   8.7 m/s   10 m/s
3 .		How far does the ball in question 1 travel in the x direction in 2 seconds? [Hint]   4 meters   10 meters   17.4 meters   20 meters
4 .		How far does the ball in question 1 travel in the y direction in 2 seconds? [Hint]   4 meters   10 meters   17.4 meters   20 meters
5 .		Suppose that several projectiles are fired on level ground. Which one will be in the air longest? [Hint]   The one with the farthest range, R.   The one with the highest maximum elevation, h.   The one with the greatest initial velocity.
6 .		Which of the following does not affect the range of a projectile? [Hint]   vo Initial Speed   thetao Launch Angle   yo Initial Height   xo Initial Horizontal Position
7 .		Which of the following must be zero for a projectile to achieve its maximum range? [Hint]   vxf   vyf   xf   yf
8 .		Which of the following must be zero for a projectile to be at its maximum height? [Hint]   vxm   vym   ym   xm
9 .		You hit a handball too hard and it lands, moving horizontally, on top of a roof. If its original velocity was vo at an angle q above the horizontal, then the velocity it lands on the roof with is [Hint]   zero   vo sin q   vo cos q   2vo
10 .		You throw a pebble upward as shown, with a velocity vo at an angle theta, from a roof (at point J) h ft above the ground. If the pebble rises upward to h ft above the roof (to point K), then falls to the ground below (to point L), its speed when it hits the ground is [Hint]   vo.   between vo and 2vo.   2vo.   greater than 2vo.
11 .		A ball is hit off a 1 meter high tee at 20 m/s at an angle of 70 degrees and lands on top of a 3-meter-high truck, what is its initial y position, yo? (Ground level is zero.) [Hint]   0 meters   1 meter   2 meters   3 meters
12 .		In question 11 what is the initial x position, xo? [Hint]   0 meters   1 meter   2 meters   3 meters
13 .		In question 11 what is vox? [Hint]   0 m/s   6.84 m/s   18.8 m/s   20 m/s
14 .		In question 11 what is voy? [Hint]   0 m/s   6.84 m/s   18.8 m/s   20 m/s
15 .		In question 11 what is the final y position? [Hint]   0 meters   1 meter   2 meters   3 meters
16 .		In question 11 what is the distance between the tee and the truck? [Hint]   0.75 meters   20.1 meters   25.5 meters   40.1 meters
17 .		In question 11 what is the time of travel of the ball? [Hint]   0.1 s   3.7 s   5 s   12 s
18 .		In question 11 what is the horizontal speed of the ball at its maximum height? [Hint]   0 m/s   6.84 m/s   18.8 m/s   20 m/s
19 .		In the previous question what is the vertical velocity? [Hint]   0 m/s   6.84 m/s   18.8 m/s   20 m/s
20 .		In question 19 what is the acceleration? [Hint]   -9.81 m/s2   0 m/s2   +9.81 m/s2
21 .		In question 19 what is the maximum altitude? [Hint]   5 meters   9 meters   12 meters   18.8 meters
22 .		In question 11 where is the speed the greatest? [Hint]   start   top   end
23 .		The formula for the range of a projectile [Hint]   assumes that yo is zero.   assumes that yo is not zero.   assumes that xo is zero.   assumes that xo is not zero.
24 .		What is the range of a projectile launched horizontally with a speed of 9.8 m/s? [Hint]   9.8 meters   14.1 meters   20 meters
25 .		Which of the following is not an example of projectile motion? [Hint]   football pass   basketball shot   space shuttle launch   home run   volleyball serve