You are setting up a tetherball* court with a 2-m long rope for the tetherball. While testing out the tetherball, your friend gets the ball rotating at 0.5 revolutions per second. What is the linear (or tangential) speed of the ball?
A.1.5 m/s
B.0 m/s
C. 2.75 m/s
D 3.14 m/s
E. 6.28 m/s
You are setting up a tetherball* court with a 2-m long rope for the tetherball. While...
A 1.1 kg ball is attached to a 1.35 m long string and whirled overhead in a horizontal plane. The ball goes through 3 revolutions each second. (a) The period of the ball's motion is s (b) The ball's angular speed in radians per second is rad/s (c) The ball's linear speed is m/s (d) The ball's acceleration is m/s/s (e) What force does the string exert on the ball? N
A ball swings in a vertical circle at the end of a rope 1.50 m long. When the ball is 36.9° past the lowest point on its way up, its total acceleration is (-22.5120.2j) m/s2 For that instant, do the following. (a) Sketch a vector diagram showing the components of its acceleration. (Do this on paper. Your instructor may ask you to turn in the sketch.) (b) Determine the magnitude of its radial acceleration m/s2 (c) Determine the speed of...
STAP 5.) A pulley is rotating at an angular velocity of 32 revolutions per minute. The radius of the pulley is 0.3 m. a.) How what is the angular distance the pulley rotates in 5 sec? b.) What is the linear distance the pulley rotates in 5 sec? c.) If a motor takes 30 sec to speed up the pulley to 82 revolutions per minute, what was the angular acceleration the motor applied? d.) How far will the pulley have...
Hint: For this problem, all angle units must be converted to the 'natural' unit for angular displacement, and without a picture, you won't get far at all. A bike racer speeds up on a horizontal road. The wheel of radius 0.34 m is rotating at a rate of 0.70 revolutions per second at time = 0.0 s. The racer accelerates at a constant rate so that 0.22 seconds later her wheel rotates at 1.10 revolutions per second, after which she...
12. A 3.0 m long and 2.0 m wide carton of mass 100 kg leans against a smooth wall as shown in the figure The coefficient of state friction between the floor and the lower end of the carton is 0.80. The normal for the a 240 N h TOON c. 980 N d. 80N e. None of the above A 2.0 m long, 200 N uniformladder, rests with one end against a smooth wall making an angle of 30...
Your friend is about to drive away after moving out and you notice that they left behind their basketball, so you decide to throw it at a 45 degree from the horizontal towards the truck. If the truck is 7.3 m away from you, at what speed must you throw the ball for it to make it into the truck? Assume you launch the ball at the same height as the truck bed. Report the value in m/s rounded to...
A child pushes her friend (m = 25 kg) located at a radius r = 1.5 m on a merry-go-round (rmgr = 2.0 m, Imgr = 1000 kg*m2) with a constant force F = 90 N applied tangentially to the edge of the merry-go-round (i.e., the force is perpendicular to the radius). The merry-go-round resists spinning with a frictional force of f = 10 N acting at a radius of 1 m and a frictional torque τ = 15 N*m...
1. A pole is held vertically by attaching wires at a height of 13.4 m above the ground. The other end of each wire is anchored in the ground at a distance of 9.54 m from the base of the pole. The pole makes a right angle with the ground. What is the length of each wire? 2. A bug crawls 2.25 m along the base of a wall. Upon reaching a corner, the bug's direction of travel changes from...
Please answer the following physic questions. Thank you! 1. A dog sees a flowerpot sail up and then back past a window 5.0 ft high. If the total time the pot is in sight is 1.0 seconds, find the height above the window that the pot rises. 2. An elevator ascends with an upward acceleration of 4.0 ft/s2. At the instant its upward speed is 8.0 ft/s, a loose bolt drops from the ceiling of the elevator 9.0 ft from...
Could you please answer these questions
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Calculate the average density of the following astronomical body: Mars. Mars = kg/m3 Where does the value fit among those listed in the table below? Look up the density of a typical rock, such as granite in another source and compare the density of Mars to it. A proton, which is the nucleus of a hydrogen atom,...