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  1. J

    Circular motion: could this happen?

    wait im sorry, but i still get a wrong answer. the normal force is equal to the gravitational force. the force of static friction is equal to the force of drag. I can only find the normal force, which is just (9.8N/kg)M (mass is not given). what forces are responsible for the inward...
  2. J

    Circular motion: could this happen?

    circular motion: could this happen?!? 1. Problem, given data I have a car traveling a curve initially at 75 mi/hr. It comes to rest before it travels 350 ft along the curve. The radius of the curve is 650 ft. I am asked if this situation is possible. 2. Equations a = v^2/R 3...
  3. J

    HELP with Police + Speeding Car :velocity, acceleration, displacement

    ok, well is there a different way you set up the problem?
  4. J

    HELP with Police + Speeding Car :velocity, acceleration, displacement

    1. The problem and given data You are a police officer and your squad car is at rest on the shoulder of an interstate highway when you notice a car passing you at its top speed of 85 mi/h. You jump in your car, start the engine, and find a break in the traffic, a process which takes 25 s. You...
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