Question
Mon August 27, 2012 By:
a  1000  kg  vehicle  moving  with  a  speed  of  20 m/s  is  brought  to  rest  in  a  distance  of  50  meters.

about acceleration

Expert Reply
Tue August 28, 2012
 
final vel=0
initial vel=20 m/s
putting the given values in third equation of motion:
0=20 x20-2 a x 50
a=4 m/s2
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