SOLUTION: An object begins with an initial velocity of +10m/s and speeds up to +50m/s in a time of 4 seconds. How far does the object travel in this time?

Algebra ->  Equations -> SOLUTION: An object begins with an initial velocity of +10m/s and speeds up to +50m/s in a time of 4 seconds. How far does the object travel in this time?      Log On


   



Question 1163575: An object begins with an initial velocity of +10m/s and speeds up to +50m/s in a time of 4 seconds. How far does the object travel in this time?
Found 2 solutions by ikleyn, Edwin McCravy:
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

First, calculate the acceleration  a = %28V%5B2%5D-V%5B1%5D%29%2Ft = %2850-10%29%2F4 = 40%2F4 = 10 m/s^2.


Next, calculate the distance  d = V%5B1%5D%2At + %28a%2At%5E2%29%2F2 = 10%2A4 + %2810%2A4%5E2%29%2F2 = 10%2A4 + %2810%2A16%29%2F2 = 40 + 10*8 = 40 + 80 = 120 meters.    ANSWER

Solved.

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Hello,  if you start study  Physics,  do you have an appropriate textbook ?

I can recommend you something,  if you wish.



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comment from student: Ms. Ikelin, What do you recommend for physics??
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My response :

1)   If you are between 12 - 15 years old,  then

      Taffel - Physics,  its  Methods and  Meaning,  1986  (5 edition)  or  1992  (6 ed.)


2)   If you are between  16 - 18 years old,  then

      Giancoli - Physics,  6-th edition.


These textbooks are perfect.

The authors love their subject,  know it,  love to teach and are professional in their job.

You can buy both books in Amazon  (used, hardcover)  for very cheep price.

Which class/grade are you ?
Did your teacher recommend you something ?



Answer by Edwin McCravy(20055) About Me  (Show Source):