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: Can anyone help me with this problem

  1. Feb 24, 2008 #1
    A train slows down as it rounds a sharp horizontal turn, slowing from 84.2 km/h to 50.7 km/h in the 15 s that it takes to round the bend. The radius of the curve is 120 m. Compute the acceleration at the moment the train speed reaches 50.7 km/h. Assume that it continues to slow down at this time at the same rate.

    What is the magnitude in m/s2?

    What is the direction in __ ° backward (behind the radial line pointing inward)

    The formulas that I have is:

    Vf= Vi + AT

    Rf= Ri + Vi*t + (1/2)A*T^2
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted