Discussion_4_2210_Problems.pdf - 4th Discussion Section PHYS 2210 Spring 2020 Please clearly print the names of your group members 1 3 2 4 1 Draw each

Discussion_4_2210_Problems.pdf - 4th Discussion Section...

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4th Discussion Section PHYS 2210 Spring 2020 Please clearly print the names of your group members: 1. ....................................................... 3. ....................................................... 2. ....................................................... 4. ....................................................... 1. Draw each of the following vectors. Then find its x- and y- components. a. .5 m / s , 30 clockwise from the positive y axis V = 7 ° b. .5 m / s , 30 clockwise from the negative x axis a = 1 2 ° c. 0.0 N , 36.9 counterclockwise from the positive y axis F = 5 ° 2. Let Find the x- and y components of in 5 m , 30 counterclockwise from the positive y axis . B = ° B each of the coordinate systems below:
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3. The two masses in the figure below slide on frictionless wires. They are connected by a pivoting rigid rod of length L. Prove that v 2x = -v 1y tan 𝛳 4. A particle’s velocity is described by the function m/s where t is in ( t 7 t 0) v x = 2 + 1 seconds. a. At what times does the particle reach its turning points? b. What is the particle’s acceleration at each of the turning points?
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5. A ball rolls along the smooth track shown in the figure below. Each segment of the
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Unformatted text preview: track is straight, and the ball passes smoothly from one segment to the next without changing speed or leaving the track. Draw three vertically stacked graphs showing position, velocity, and acceleration versus time. Each graph should have the same time axis, and the proportions of the graph should be qualitatively correct. Assume that the ball has enough speed to reach the top. 6. You are playing miniature golf at the golf course shown in the figure below. Due to the fake plastic grass, the ball has an acceleration of -1.0 m/s 2when rolling horizontally and at -6.0 m/s 2on the slope. What is the slowest speed with which the ball can leave your golf club if you wish to make a hole in one? 7. A rocket is launched straight up with constant acceleration. Four seconds after liftoff, a bolt falls off the side of the rocket. The bolt hits the ground 6.0 s later. What was the rocket’s acceleration?...
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  • Fall '09
  • ball, Polar coordinate system

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