in car chase scenes in action movies drivers often pee In car chase scenes in ac
ID: 1636159 • Letter: I
Question
in car chase scenes in action movies drivers often pee In car chase scenes in action movies, drivers often "peel out" from a stop, gunning the engine and spinning their wheels in an effort to accelerate as quickly as possible. Suppose we set up a race between a driver who peels out and a driver who does not. Whose acceleration is greater? Select one: a. The two drivers have the same acceleration. b. The driver who does not peel out has a greater acceleration. c. The driver who peels out has a greater acceleration. d. The driver who peels out has a smaller acceleration at first, but once his tires grab hold, his acceleration is greater.Explanation / Answer
the maximum acceleration a car can achieve is given by
mu*mg/m = mu*g where mu is coefficient of static friction
now, since the static fricition values depend on the applied load and always equals the load applied, the driver peeling is applying more load on the road
this helps the driver get more static friction ( the limit being the maximum acceleration achievable) and hence the driver peeling gets more acceleration
c. the driver who peels has greater acceleratiuon
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