PRACTICE QUIZ 7A

Answer the following questions completely and clearly.

1. What is always true about v_iy for a projectile launched horizontally?

 

2. What is always the relationship between v_x and v_i for a projectile launched horizontally?

 

3. What is always true about y for a projectile launched horizontally?

 

4. Write the formula we have used for dealing with the horizontal motion of a projectile.

 

5. Write the formulas we have used for dealing with the vertical motion of a projectile.

 

Solve the following. Show all work and circle your answer.

6. A toy car runs off the edge of a table that is 1.225 m high. If the car lands 0.400 m from the base of the table, ...

a. how long does it take the car to fall? (answer = 0.500 s)

 

 

 

 

b. what is the horizontal velocity of the car as it leaves the table? (answer = 0.800 m/s)