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NAME DATE CLASS PHYSICS Math Skills Acceleration A car is traveling down a straight road. The driver then applies the brake, and the car decelerates with a constant acceleration until it stops. Refer to the equations below to answer the questions. 6*=){r;+ uy)Lt ,f = ri+ a(Lt) Lx= u{Lt) +)a(Lt)2 ,f = ,;' + 2aa,x 1. What is the car's final speed 2. You are given the distance the car travels and the length of time it takes for the car to come to a complete stop after the driver applies the brakes. z1? Explain your answer. What is the expression for the car's initial speed? o 3. You are given the car's initial speed and the length of time it takes for the car to come to a full stop after the driver applies the brakes. What is the expression for the magnitude of the car's acceleration? 4. You are given the car's initial speed and the distance the car travels before it comes to a complete stop after the driver applies the brakes. What is the expression for the magnitude of the car's acceleration? 5. You are given the magnitude of the car's acceleration and the length of time it takes for the car to come to a full stop after the driver applies ! .9 x .c .9 6 o o .E (! o o a 6 o o o E o !c l !o t .o) o o o t.E o 6 E = I E. the brakes. What is the expression for the initial speed of the car, and what is the expression for the distance it traveled before it came to a complete stop? Chapter 2 Z Position and Velocity Vs. Time Graphs Sketch position vs, time and velocity vs, time graphs for the fottowing scenarios. tf specific distances, velocities, ond times ore given, lobelthem on your grophs. Assume all movement is in o straight line. 1) Your mother walks five meters to the kitchen at a velocit y of Zm/s, pauses by the refrigerator for three seconds, then walks back with a plate full of potato salad at a velocity of 1 m/s. 2l A car is driving down the road at 55 mph, and after getting a flat tire moves at 35 mpn. 3) A bullet is fired from a gun and travels 1000 meters in one second before hitting a solid target. 6) When you hit a golf ball, it travels through the air at 25 m/s. lt slows down once it hits the ground 100 meters away until it comes to a stop 110 meters away.