Name:______________________________Date:____________Hour:________

Calculations with Velocity and Acceleration

Read and solve each of the following problems.  Be sure to show all of your work (given, equation, work, and answer with the proper units)

Velocity Equations:

1.  What distance is traveled by a police car that moves at a constant speed of 2.5 m/s for 20s?

Given:                                                   Equation & Work:
v=
d=
t=                                                                                                                                           

Answer:______________________   

2.  What is the speed of a horse  that travels  45 m in  2 minutes?   (remember to convert minutes to seconds)
Given:                                                   Equation & Work:
v=
d=
t=                                                                                                                                             

Answer:______________________   

 

3.  How long would it take for a commercial jet to get from St. Louis to New York, a distance of 1,406 km, if it travels at an average velocity of  156 m/s.    (You will also need to do some conversions here to match your units)
 

Given:                                                   Equation & Work:
v=
d=
t=                                                                                                                                           

Answer:______________________

 

Acceleration Equations:

4.  A skier takes off from the top of the ski run and reaches a speed of 24 m/s in 4 seconds.
       What is the skier’s acceleration?

Given:                                                                   Equation & Work:
vi =
vf =
t =
a =                                                                                                                                                         
Answer _________________

5.  A child on a skateboard is traveling at a velocity of 8 m/s down a hill. At the bottom of the hill, he slows down and comes to a stop in 4 seconds. Calculate the sled’s deceleration
(negative  acceleration).

Given:                                                                   Equation & Work:
vi =
vf =
t =
a =                                                                                                                                                          Answer _________________

6.   A skydiver jumps out  of a plane and as he falls he has an acceleration of
9.8 m/s2. How many seconds will it take to reach a speed of 28.5 m/s?

Given:                                                                   Equation & Work:
vi =
vf =
t =
a =                                                                                                                                                         
Answer _________________