STEM Lessons for College Students

8.100 .. DATA A 2004 Prius with a 150-lb driver and no passengers weighs 3071 lb. The car is initially at rest. Starting at t = 0 a net horizontal force Fx1t2 in the +x-direction is applied to the car. The force as a function of time is given in Fig. P8.100. (a) For the time interval t = 0 to t = 4.50 s what is the impulse applied to the car? (b) What is the speed of the car at t = 4.50 s? (c) At t = 4.50 s the 3500-N net force is replaced by a constant net braking force Bx = -5200 N. Once the braking force is first applied how long does it take the car to stop? (d) How much work must be done on the car by the braking force to stop the car? (e) What distance does the car travel from the time the braking force is first applied until the car stops?

University Physics with Modern Physics lessons by JJtheTutor. Designed to teach students problem solving skills.

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Question source: “University Physics with Modern Physics by Hugh Young and Roger Freedman

University Physics with Modern Physics lessons by JJtheTutor. Designed to teach students problem solving skills, test taking skills and how to understand the concepts.

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