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Science-Related Homework Help Physics Topic started by: rjandmj82 on Oct 21, 2012



Title: physics linear motion problem?
Post by: rjandmj82 on Oct 21, 2012
A speeder passes a parked police car at 34.9
m/s. Instantaneously, the police car starts
from rest with a uniform acceleration of 2.42
m/s2.

a) How much time pases before the speeder
is overtaken by the police car?

b) How far does the speeder get before being
overtaken by the police car?

help please!


Title: physics linear motion problem?
Post by: lenorefrancis on Oct 21, 2012
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Title: physics linear motion problem?
Post by: inreverie on Oct 21, 2012
x=(1/2)at^2 + Vo + Xo on both cars
set the x formulas equal to each other. and use the quadratic formula to solve for the time.  then multiply the time by the speed and u get the distance



A= 28.8s
B=1005.12 m (w/o considering sig figs)
B= 1.01x10^3  m (with significant figures)


Title: physics linear motion problem?
Post by: iliketorifk on Oct 21, 2012
yeah i worked it out. Jon has the correct answer.