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A 1500kg car slows from 45km/h[E] to 30km/h[E]

  1. Nov 2, 2003 #1
    a 1500kg car slows from 45km/h[E] to 30km/h[E]. What is the impulse from the brakes?
     
    Last edited by a moderator: Feb 7, 2013
  2. jcsd
  3. Nov 2, 2003 #2
    This should probably be posted in the homework help section.

    Nautica
     
  4. Nov 2, 2003 #3

    ShawnD

    User Avatar
    Science Advisor

    45km/h = 12.5m/s
    30km/h = 8.3333m/s

    I = mdv
    I = (1500) x (8.333 - 12.5)
    I = -6250kgm/s
     
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