Chemical Forums

Chemistry Forums for Students => Physical Chemistry Forum => Topic started by: greentea11 on May 25, 2014, 08:50:58 AM

Title: Vector of particle
Post by: greentea11 on May 25, 2014, 08:50:58 AM

Question is attached

an equation I can think of is acceleration is d²r/dt

How do I show acceleration is towards the origin? Not quite sure how to go about the question, any tips welcome

Title: Re: Vector of particle
Post by: Borek on May 25, 2014, 10:03:00 AM

Can you plot the trajectory?

Title: Re: Vector of particle
Post by: Corribus on May 25, 2014, 10:07:47 AM

Quote from: greentea11 on May 25, 2014, 08:50:58 AM

an equation I can think of is acceleration is d²r/dt

Sounds like this might be a good place to start. Have you taken the second derivative of that equation wrt t?