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Two-Dimensional Kinematics
Practice Questions

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 .       What is the y component of the velocity of the ball in question 1? [Hint]

 
 
 
 


3 .       How far does the ball in question 1 travel in the x direction in 2 seconds? [Hint]

 
 
 
 


4 .       How far does the ball in question 1 travel in the y direction in 2 seconds? [Hint]

 
 
 
 


5 .       Suppose that several projectiles are fired on level ground. Which one will be in the air longest? [Hint]

 
 
 


6 .       Which of the following does not affect the range of a projectile? [Hint]

 
 
 
 


7 .       Which of the following must be zero for a projectile to achieve its maximum range? [Hint]

 
 
 
 


8 .       Which of the following must be zero for a projectile to be at its maximum height? [Hint]

 
 
 
 


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]

 
 
 
 


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]

 
 
 
 


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]

 
 
 
 


12 .       In question 11 what is the initial x position, xo? [Hint]

 
 
 
 


13 .       In question 11 what is vox? [Hint]

 
 
 
 


14 .       In question 11 what is voy? [Hint]

 
 
 
 


15 .       In question 11 what is the final y position? [Hint]

 
 
 
 


16 .       In question 11 what is the distance between the tee and the truck? [Hint]

 
 
 
 


17 .       In question 11 what is the time of travel of the ball? [Hint]

 
 
 
 


18 .       In question 11 what is the horizontal speed of the ball at its maximum height? [Hint]

 
 
 
 


19 .       In the previous question what is the vertical velocity? [Hint]

 
 
 
 


20 .       In question 19 what is the acceleration? [Hint]

 
 
 


21 .       In question 19 what is the maximum altitude? [Hint]

 
 
 
 


22 .       In question 11 where is the speed the greatest? [Hint]

 
 
 


23 .       The formula for the range of a projectile [Hint]

 
 
 
 


24 .       What is the range of a projectile launched horizontally with a speed of 9.8 m/s? [Hint]

 
 
 


25 .       Which of the following is not an example of projectile motion? [Hint]

 
 
 
 
 






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