
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 v_{o} 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 v_{o} 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 3meterhigh truck, what is its initial y position, y_{o}? (Ground level is zero.) [Hint]


12 . 

In question 11 what is the initial x position, x_{o}? [Hint]


13 . 

In question 11 what is v_{ox}? [Hint]


14 . 

In question 11 what is v_{oy}? [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]


