Physics 310 Midterm

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Question 1.1. (TCO 2) A skier begins skiing straight down a hill having a constant slope, starting from rest. If friction is negligible, as the skier goes down the hill, his or her (Points : 5) | acceleration is zero. acceleration increases with time. acceleration is constant, with a value of roughly 10 m/s/s. acceleration is constant, with a value less than 10 m/s/s. | Question 2.2. (TCO 1) You walk 53 m to the north, then turn 60° to your right and walk another 45 m. Determine the direction of your displacement vector. Express your answer as an angle relative to east. (Points : 5) | 50° N of E 57° N of E 63° N of E 69° N of E | Question 3.3. (TCO 3) In a shuffleboard game, the puck slides a total of 12 m before coming to rest. If the coefficient of kinetic friction between the puck and board is 0.28, which was the initial speed of the puck? (Points : 5) | 6.5 m/s 7.3 m/s 8.1 m/s 29.0 m/s | Question 4.4. (TCO 4) Find the resultant acceleration of a particle moving on a circle of radius 0.70 m, if its angular speed is 37 rpm and its tangential acceleration is 2.9 m/s2. Express the angle with respect to the tangential velocity vector (i.e., +90° points radially out). (Points : 5) | 10.9 m/s2 at -75 10.9 m/s2 at +75 37.9 m/s2 at -75 37.9 m/s2 at +75 | | 7. (TCO 3) A mosquito collides head-on with a car traveling at 60 mph. Is the force of the mosquito on the car larger than, smaller than, or equal to the force of the car on the mosquito? Is the magnitude of the acceleration of the mosquito larger than, smaller than, or equal to the magnitude of the car’s acceleration? Explain in complete sentences. (Points : 20)
Since the mosquito is so small compared to the car, it's deacceleration is huge compared to the car.…...

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