PRACTICE QUIZ 7B

Answer the following questions completely and clearly.

1. How does v_x change over time for any projectile (ignoring air resistance)?

 

2. How do a projectile's rising and falling times compare if it lands at the same height at which it was launched?

 

3. Draw a diagram showing the initial velocity of a projectile shot at some nonhorizontal angle. Also, carefully draw the horizontal and vertical components of the initial velocity.

 

 

 

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

4. A potato is launched with a speed of 122 m/s at an angle of 42^o above horizontal.

a. How long is the projectile in the air? (answer = 16.7 s)

 

 

 

 

b. What is the horizontal distance covered by the potato? (answer = 1510 m)

 

 

 

c. What is the maximum height reached by the potato? (answer = 340 m)