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BAED-PHYC2121 General Physics 1
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The coefficient of static friction between the tires of a car and the street is μs = 0.64. Of the following, what is the steepest inclination angle of a street on which a car can be parked (with wheels locked) without slipping?
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I walk five miles in a straight line in a direction north of east, and I end up three miles east and several miles north. How many degrees north of east have I walked?
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2.2 What is Motion?
An x-t graph is drawn for a ball moving in one direction. The graph starts at the origin and at t = 6 s the velocity of the ball is zero. We can be positive that at t = 6 s,0%
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An automobile driver puts on the brakes and decelerates from 28.0 m/s to zero in 13.0 s. What distance does the car travel?
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As I slide a box at constant speed up a frictionless slope, pulling parallel to the slope, the tension in the rope will be:
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A barefoot field-goal kicker imparts a speed of 25 m/s to a football at rest. If the football has a mass of 0.50 kg and time of contact with the football is 0.020 s, what is the force exerted on the foot?
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When we add a displacement vector to another displacement vector, the result is
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3.4 Free Fall
A stone is thrown downward from a cliff. Take "up" to be the positive direction. Which of the following statements is true about the stone?0%
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3.4 Free Fall
A rock, released at rest from the top of a tower, hits the ground after 2.0 s. What is the speed of the rock as it hits the ground? (g = 9.8 m/s2 and air resistance is negligible)0%
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A boxcar of mass 200 tons at rest becomes uncoupled on a 1.5° grade. If the track is considered to be frictionless, what speed does the boxcar have after 10 seconds?
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