1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: What is the acceleration of the particle

  1. Dec 4, 2014 #1
    1. The problem statement, all variables and given/known data
    The motion of a particle is given as follows :
    Which of the following option(s) is/are correct ?
    A.The initial velocity of particle is u
    B.The acceleration of the particle is a
    C.The acceleration of the particle is 2a
    D.At ##t=2s## particle is at origin.

    2. Relevant equations

    3. The attempt at a solution
    Simplifying the equation, we get,
    Could somebody guide me as to what will be the next step ?
  2. jcsd
  3. Dec 4, 2014 #2
    Have you had (or are studying) calculus?

  4. Dec 5, 2014 #3
    No. I have had no exposure to calculus.
  5. Dec 5, 2014 #4
    Well, how are velocity and acceleration defined and related to each other?
  6. Dec 5, 2014 #5
    The mentioned scenarios can be reduced to relative motion. Right ?
  7. Dec 5, 2014 #6
  8. Dec 5, 2014 #7
    Well, without calculus, it's not as easy , but try this: substitute t'=t-2 in your original equation and see shat you get.

  9. Dec 5, 2014 #8
    But there is no t'. I just simplified the problem equation.
  10. Dec 5, 2014 #9
    Let's try something different. Let's take your simplified equation and rewrite it as:
    Compare this with:
    x0=particle location at time zero
    v0=particle velocity at time zero
    A = particle acceleration

  11. Dec 6, 2014 #10
    I think you may be familiar with derivatives even if you haven't had much exposure to calculus.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted