The coefficient of sliding friction between the tires of a car and the road surface is u = 0.5. The driver brakes sharply and locks the wheels. If the velocity of the car before braking was to = 60 km/h, how much time will the car take to stop? What is the stopping distance? %3D
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- Which of the following correctly applies to a projectile In the absence of friction? A. The vertical velocity Is changing. B. The horizontal velocity is changing. C. The vertical acceleration Is changing. D. The horizontal acceleration is changing.At the equator, the radius of the Earth is approximately 6370km. A jet flies at a very low altitude at a constant speed of v=222m/s. Upon landing, the jet can produce an average deceleration of magnitude a=16.5m/s2 What is the minimum landing distance, in meters, this jet needs to come to rest? Assume that, when the jet initially touches the ground, it is moving at the same speed as it was when it was flying.P2-7. express F as a Cartesian vector. 4 m F= 15 kN
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