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Kinematic Equations Quiz#1

To receive full of partial credit, please show all your work. Write clearly and legibly. Show appropriate units on all answers. The following equations may be useful.

Equations:

1. Solve either 1 of the following two problems (A or B). Do not solve both. Cross out the problem which you do not want to be graded. If you do not clearly indicate which problem you are solving, then only Problem A will be graded. (5 pts. each)

Problem A: Miles Tugo is traveling along Lake Street at 25 ft/sec. Miles accelerates at -2.0 ft/sec2. Determine the distance traveled by Miles in 10.0 seconds. PSAYW

 

 

Problem B: Two ants race across the entire length of the top of a Wheaties box at constant speed. The box is 34.0 cm long. One ant travels 4.6 cm/s and the other ant travels 3.5 cm/s. The fastest ant will cross the finish line first. How much time will pass between the time when the first ant crosses the finish line and when the second ant crosses the finish line? PSAYW

 

 

2. Milton Yermouth is hurrying to his workplace at Chocolates, INC when he observes a multi-car pileup on the interstate. Milton is moving 33.0 m/s. His Acura Legend can accelerate at -8.5 m/s2. Determine Milton's braking distance while braking to a stop. Please show a clear and organized solution. (5 pts.)

 


Useful Web Links

Kinematic Equations and Problem-Solving (7 seconds)

Sample Problems and Solutions (6 seconds)

 

3. The velocity-time graph portrays the motion of a 600-kg Yugo skidding to a stop. Use the graph to determine the distance which the Yugo travels while skidding. PSYW (3 pts)

(The following question involves Unit 2 Material)

Draw a free-body diagram (label all forces according to type) for the 600-kg Yugo while it is skidding with locked wheels to a stop. Assume the Yugo is moving to the right. Determine (and clearly display) the magnitude of each force. (4 pts)

 


Useful Web Links

Determining the Area on a v-t Graph (12 seconds)

Determining the Slope on a v-t Graph (8 seconds)

Types of Forces (8 seconds)

Drawing Free-Body Diagrams (8 seconds)

Finding Individual Forces (7 seconds)

 

 

4. Rex Things drops his mother's vase from a window on the top floor of the John Hancock building. Demonstrate your understanding of acceleration (g=10 m/s2, down) by filling in the table at the right. (2 pts)

 

(The following question involves Unit 2 Material)

Draw the free-body diagram for the free-falling (no Fair) vase in the space below. Label every force according to type. (2 pts)

Time

(s)

0

1.0

2.0

3.0

4.0

Velocity

(m/s)

0.0

_________

_________

_________

_________

 


Useful Web Links

Acceleration (12 seconds)

Types of Forces (8 seconds)

Drawing Free-Body Diagrams (8 seconds)

Finding Individual Forces (7 seconds)

 

 

(The following question involves Unit 2 Material)

5. A 4-kg object is moving rightward with a velocity of +10.0 m/s and a leftward acceleration of -1.5 m/s2. The free-body diagram for the object is shown at the right. Fill in all the blanks in the diagram. (4 pts)

 

 

Determine the distance which the object moves before stopping. (4 pts) PSYW

 


Useful Web Links

Acceleration (12 seconds)

Types of Forces (8 seconds)

Drawing Free-Body Diagrams (8 seconds)

Newton's Second Law: Fnet = m*a (9 seconds)

Finding Individual Forces (7 seconds)

Kinematic Equations and Problem-Solving (7 seconds)

Sample Problems (Kinematic Eq'ns) and Solutions (6 seconds)

 

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© Tom Henderson, 1996-1998


Glenbrook South High School.

Last updated on 9/25/98.