Thursday, April 5, 2012

Surfing For Reaction Distance Car?

Laura asks…physics ... what is the shorest possible distance ... ?A 1600 kg car moves along a horizontal road
at speed v0 = 17.3 m/s. The road is wet, so
the static friction coefficient between the tires
and the road is only µs = 0.17 and the kinetic
friction coefficient is even lower, µk = 0.119.
The acceleration of gravity is 9.8 m/s2 .
What is the shortest possible stopping distance for the car under such conditions? Use g = 9.8 m/s2 and neglect the reaction time of
the driver.

Answer

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