quarterback throws a pass that is a perfect spiral. In other words, the football does not wobble, but spins smoothly about an axis assing through each end of the ball. Suppose the ball spins at 8.3 rev/s. In addition, the ball is thrown with a linear speed of 14 m/s at n angle of 52° with respect to the ground. If the ball is caught at the same height at which it left the quarterback's hand, how many evolutions has the ball made while in the air? Number i Units

quarterback throws a pass that is a perfect spiral. In other words, the football does not wobble, but spins smoothly about an axis assing through each end of the ball. Suppose the ball spins at 8.3 rev/s. In addition, the ball is thrown with a linear speed of 14 m/s at n angle of 52° with respect to the ground. If the ball is caught at the same height at which it left the quarterback's hand, how many evolutions has the ball made while in the air? Number i Units

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)...

See similar textbooks

Similar questions

An object rotates about a fixed axis, and the angular position of a reference line on the object is given by 0=1et, where 0 is in radians and t is in seconds. Consider a point on the object that is 1.46 m from the axis of rotation. At t=1.7s, find the magnitude of the point's radial component of acceleration? Round your answer to zero decimal places.
When you start your record player, a ladybug is sitting on the edge of the record, 15 cm from the center. The record, initially at rest at t=0, experiences a constant angular acceleration of 0.698 rad/s for 5 seconds. What is the magnitude of the centripetal acceleration of the ladybug at the moment t = 5 s?
The platform is rotating about the vertical axis such that at any instant its angular position is 0 = 4t3/2 rad, where t is in seconds. A ball rolls outward along the radial groove so that its position is r = 0.1t³ m, where t is in seconds. Determine the magnitude of velocity of the ball (m/s) when t = 2.60 seconds.
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates ina horizontal circle. A trainee riding in the chamber of a centrifuge rotating with a constant angular speed of 1.8 rad/s experiences a centripetal acceleration of 2.9 times the acceleration due to gravity. In a second training exercise, the centrifuge speeds up from rest with a constant angular acceleration. When the centrifuge reaches an angular speed of 1.8 rad/s, the trainee experiences a total acceleration equal to 4.7 times the acceleration due to gravity. (a) How long is the arm of the centrifuge? (b) What is the angular acceleration in the second training exercise? (a) (b)
A good baseball pitcher can throw a baseball toward homeplate at 85 mi/h with a spin of 1800 rev/min. How many revolutionsdoes the baseball make on its way to home plate? For simplicity,assume that the 60 ft path is a straight line.
A bus is traveling at a speed of 20.0 m on a straight horizontal road. The wheels have a radius of 0.400 m. If the bus speeds up with a linear acceleration of 1.50 m/s2 for 8.00 s, what is the angular speed of each of the wheels during this time?
. A centrifuge will be used to give astronauts a gravity “spin-up” for one hour per day while on Mars. If thecentrifuge begins at rest and increases to 18 revolutions per minute. Find (a) the angular acceleration and (b)the final angular velocity in rpm.
A 1.3 kg rock is swung in a circular path and in a vertical plane on a 1 m length string. At the top of the path, the angular velocity is 9 rad/s. What is the tension in the string at that point?
An ultracentrifuge accelerates from rest to 9.97 x 105 rpm in 1.51 min. What is its angular acceleration in radians per second squared? angular acceleration: What is the tangential acceleration of a point 9.10 cm from the axis of rotation? tangential acceleration: radial acceleration: rad/s² What is the radial acceleration in meters per second squared and in multiples of g of this point at full revolutions per minute? radial acceleration in multiples of g: m/s² m/s²
The hammer throw was one of the earliest Olympic events. In this event, a heavy ball attached to a chain is swung several times in a circular path until it is released. The winning athlete is the one who throws the ball the greatest distance. The last complete rotation of 2016 Olympic champion Anita Włodarczyk’s final turn took only 0.43 s. The radius of the ball’s path, including her extended arms, was 2.1 m.a. What was the frequency of this rotation?b. What was the speed of the ball?c. What was the ball’s acceleration, in units of g?
A figure skater spinsand slows down with an angular acceleration of 1.75 radians per second squared. If she initially spun for 0.4 seconds, how many turns does she go through while slowing to a stop
The tips of the blades of the Chinook helicopter lie on a circle of diameter of 18.29 meters. What is the airspeed v of the tip of the blades when they are rotating at 225 rpm? Express your answer in meters per second to three significant figures. Consider the part of a blade that is 4.00 meters from the central hub. What is the velocity v of this part when the blades are rotating at 225 rpm? Express your answer in meters per second to two significant digits.