The center of mass G of a high jumper follows the trajectory shown. Determine the component vo, measured in the vertical plane of the figure, of his takeoff velocity and angle 0 if the apex of the trajectory just clears the bar at A. (In general, must the mass center G of the jumper clear the bar during a successful jump?)

The center of mass G of a high jumper follows the trajectory shown. Determine the component vo, measured in the vertical plane of the figure, of his takeoff velocity and angle 0 if the apex of the trajectory just clears the bar at A. (In general, must the mass center G of the jumper clear the bar during a successful jump?)

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

A uniformly loaded rectangular crate is released from rest in the position shown. Assuming that the floor is sufficiently rough to prevent slipping and that the impact at B is perfectly plastic, deter- mine the smallest value of the ratio a/b for which corner A will remain in contact with the floor. A qf b B
The 5 kg ball Ais released from rest when θ=60°and swings down, striking the 10 kg block B. If the distance between the ceiling to the center of the ball is 3 m and the coefficient ofrestitution is 0.8, determine The velocities of the block and the ball immediately after the impact. The distance block Bslides before coming to rest. The coefficient of kinetic friction between the floor and the block is μ=0.4.
Calculate the force and moment reactions at the bolted base O of the overhead traffice-signal assembly. Each traffic signal has a mass of 35 kg, while the masses of members OC and AC are 67 kg and 59 kg, respectively. Positive answers are to the right, up, and counterclockwise. 35 kg Answers: 3 i Mo= i 5.9 m 35 kg B 1.0 KN KN kN-m 59 kg 4.9 m 67 kg C 8.9 m
An acrobatic buccaneer swings from one rope to another in the rigging of a pirate ship. As she grasps the rope, her mass is m, 63.5 kg; knots on the rope make the rope's effective mass m, 1.50 kg. From the height %D she grabs the rope, she swings up a further distance of 1.50 m. Assuming that her collision with the rope is perfectly inelastic, answer the following questions: {Note: Treat as a ballistic pendulum problem!} mehanical a) Does the buccaneer's collision with the rope conserve her-kietie en- ergy? {Y/N?} b) Neglecting any energy losses due to friction, air drag, etc., determine the velocity of the buccaneer + rope system right after she grabs the rope in m/s. {Assume a closed system, thus Conservation of Energy} c) Is it possible to calculate the buccaneer's initial speed before she grabbed the rope from the information given? {Y/N?}
a ball of mass 2 kg impinges directly with a ball of mass 1 kg, which is at rest. if the velocity is smaller mass after impact, be the same as that of the first ball before impact, find the coefficient of restitution.
The center of mass G of a high jumper follows the trajectory shown. Determine the component vo, measured in the vertical plane of the figure, of his takeoff velocity and angle 8 if the apex of the trajectory just clears the bar at A. (In general, must the mass center G of the jumper clear the bar during a successful jump?) Assume a = 3.3 ft, b = 3.5 ft, c = 3.5 ft. Answers: Vo = 0= i IM ft/sec
Need help right away please
Two blocks, with masses m and 3m, are attached to the ends of a string with negligible mass that passes over a pulley, as shown above. The pulley has negligible mass and friction and is attached to the ceiling by a bracket.The blocks are simultaneously released from rest. The acceleration of the center of mass of the blocks-string-pulley system has magnitude aCOM . Briefly explain, in terms of any external forces acting on the system, why aCOM is less than g.
A Saturn V rocket was measured to produce exit gases with a velocity of 2000m/s whenconsuming 1500 kg/s of fuel and oxygen. Calculate the thrust.
Find the center of mass of a rod of length L whose mass density changes from one end to the other quadratically. That is, if the rod is laid out along the x-axis with one end at the origin and the of end at x = L, the density is given by p(x) = Po + (P, - PoE where Po and e, are constant values. (Use the following as necessary: L, Po, and e,.) XCM =
Find the center of mass of a regular solid circular cone of height (b) dm R
Calculate the force and moment reactions at the bolted base O of the overhead traffice-signal assembly. Each traffic signal has a mass of 37 kg, while the masses of members OC and AC are 80 kg and 73 kg, respectively. Positive answers are to the right, up, and counterclockwise. 37 kg Answers: i Oy= i Mo i 5.4 m 37 kg B 1.0 G kN KN kN-m 73 kg 4.4 m 80 kg с 8.7 mi