Question #1 "Pây člose attention to directions1. You are helping your friend unload their moving truck. You are starting to get lazy, so you just set theboxes on the ramp down to the ground to let them slide down. You try to do the same with a smallchair, but notice that it slides down the ramp much more slowly. Being a budding physicist, you reasonthat this is because the chair/ramp combination has a larger coefficient of kinetic friction than theboxes/ramp combination. The chair accelerates down the ramp at 0.72 The ramp is at an angle of31° below the horizontal and the chair has a mass of 13 kg. Find the coefficient of friction between thechair and the ramp.2. Your physics professor told you that you feel heavier or lighter in an elevator at the beginning or end ofyour vertical voyage. You want to test if your weight ACTUALLY changes, so you take a bathroom scalewith you to the rickety elevator in Elings hall. You hop on at the second floor and step onto the scalebefore pressing the button to travel down to the first floor. Before the doors close, while the elevatorisn't moving, you have a weight of 934 N. As soon as the elevator starts downward, the scale reads813 N. What is the magnitude of the acceleration of the elevator?3. Ricky Bobby used to be the best there is at car racing. But then he had an accident and has been scaredto go fast ever since, Rickv Bobbv goes around a banked curve on a race track at less than ideal speed.WDELE

1. acceleration, a = 0.72 m/s2 Angle, A = 31 degree

You are helping your friend unload their moving truck. You are starting to get lazy, so you just set the boxes on the ramp down to the ground to let them slide down. You try to do the same with a small chair, but notice that it slides down the ramp much more slowly. Being a budding physicist, you reason that this is because the chair/ramp combination has a larger coefficient of kinetic friction than the boxes/ramp combination. The chair accelerates down the ramp at 0.72 The ramp is at an angle of 31° below the horizontal and the chair has a mass of 13 kg. Find the coefficient of friction between the chair and the ramp.

You are helping your friend unload their moving truck. You are starting to get lazy, so you just set the boxes on the ramp down to the ground to let them slide down. You try to do the same with a small chair, but notice that it slides down the ramp much more slowly. Being a budding physicist, you reason that this is because the chair/ramp combination has a larger coefficient of kinetic friction than the boxes/ramp combination. The chair accelerates down the ramp at 0.72 The ramp is at an angle of 31° below the horizontal and the chair has a mass of 13 kg. Find the coefficient of friction between the chair and the ramp.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter6: Applications Of Newton’s Laws Of Motion

Section: Chapter Questions

Problem 10PQ: A makeshift sign hangs by a wire that is extended over an ideal pulley and is wrapped around a large...

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