SPO15: TUTORIAL CHAPTER 6Subjective Questions1. A 200g of mass is moving with uniform angular velocity in a circle of radius 80 cm on asmooth horizontal surface. If the mass completes 10 revolutions in one second, calculate:a) Angular specd in rad s. JAnswer : 62.83 radsIb) Lincar speed around the circular path. JAnswer : 50.26 ms')2. A particle is moving on a circular path of a diameter 1.0 m at a constant speed of 10 ms.Find the time taken to complete 20 revolutions. [Answer : 6.28 s]3. What is the centripetal acceleration of a particle at a constant speed of 2.5 ms' which rotatesat 3 000 revolutions per minute? [Answer: 785.4 ms4. The astronaut orbiting the Earth is preparing to dock with Westar VI satellite. The satelliteis in a circular orbit 600 km above the Earth's surface, where the free fall acceleration(centripetal acceleration) is 8.21 m s2. Take the radius of the Earth as 6400 km. Determinea) The speed of the satellite. [Answer : 7580.9 msb) The time interval required to complete one circular orbit. [Answer : 5801.7 s]5. If an object of mass 3.5 kg is traveling in circular path with a radius of 3.14 m at a speed of3.46 m/s, what will be the centripetal force on that object? [Answer: 13.34 N]6. A ball of mass 150 g is attached to one end of a string 1.10 m long. The ball makes 2.00revolution per second in a horizontal circle.a) Sketch the free body diagram for the ball.b) Determine :i)the centripetal acceleration of the ball. [Answer : 173.63 msthe magnitude of the tension in the string. [Answer : 26.04 NJii)7. A ball of mass 0.35 kg is attached to the end of a horizontal cord and is rotated in a circleof radius 1.0 m on a frictionless horizontal surface. If the cord break when the tension in itexceeds 80 N, determinea) The maximum speed of the ball, [Answer : 15.12 msb) The minimum period of the ball. [Answer: 0.416 s]8. A car of mass 2000 kg rounds a circular turn of radius 20 m. The road is flat and thecoefficient of friction between tires and the road is 0.70. Sketch a free body diagram of thecar and determine the maximum speed of the car can have to make the turm succesfully.JAnswer: 11.72 ms']

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1. A 200g of mass is moving with uniform angular velocity in a circle of radius 80 cm on a smooth horizontal surface. If the mass completes 10 revolutions in one second, calculate : a) Angular speod in rad s. JAnswer : 62.83 rads l b) Lincar speed around the circular path. [Answer : 50.26 ms')

1. A 200g of mass is moving with uniform angular velocity in a circle of radius 80 cm on a smooth horizontal surface. If the mass completes 10 revolutions in one second, calculate : a) Angular speod in rad s. JAnswer : 62.83 rads l b) Lincar speed around the circular path. [Answer : 50.26 ms')

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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