An athlete with a mass of 65.0 kg is running at a horizontal velocity of 10.5 m/s before jumping at the takeoff line. When he arrives at the takeoff line, he stays in contact with the ground for 0.185 seconds before taking off at a 50.0 degree angle with a velocity of 12.5 m/s. Determine the vertical component of the average impulsive force exerted on the athlete by the ground. 10.5 m/s Take- off line 12.5 m/s 50°

An athlete with a mass of 65.0 kg is running at a horizontal velocity of 10.5 m/s before jumping at the takeoff line. When he arrives at the takeoff line, he stays in contact with the ground for 0.185 seconds before taking off at a 50.0 degree angle with a velocity of 12.5 m/s. Determine the vertical component of the average impulsive force exerted on the athlete by the ground. 10.5 m/s Take- off line 12.5 m/s 50°

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter9: Linear Momentum And Collisions

Section: Chapter Questions

Problem 9.36P

See similar textbooks

Similar questions

NASAs Saturn V rockets that launched astronauts to the moon were powered by the strongest rocket engine ever developed, providing 6.77 106 N of thrust while burning fuel at a rate of 2.63 103 kg/s. Calculate the engines exhaust speed.
Three skydivers are plummeting earthward. They are initially holding onto each other, but then push apart. Two skydivers of mass 70 and 80 kg gain horizontal velocities of 1.2 m/s north and 1.4 m/s southeast, respectively. What is the horizontal velocity of the third skydiver, whose mass is 55 kg?
A baseball (m = 148 g) approaches a bat horizontally at a speed of 40.7 m/s (91.1 mi/h) and is hit straight back at a speed of 51.6 m/s (115 mi/h). If the ball is in contact with the bat for a time of 1.45 ms, what is the average force exerted on the ball by the bat? Neglect the weight of the bat, since it is so much less than the force of the bat. Choose the direction of the incoming ball as the positive direction.
A baseball (m = 152 g) approaches a bat horizontally at a speed of 43.6 m/s (97.6 mi/h) and is hit straight back at a speed of 53.8 m/s (120 mi/h). If the ball is in contact with the bat for a time of 1.03 ms, what is the average force exerted on the ball by the bat? Neglect the weight of the bat, since it is so much less than the force of the bat. Choose the direction of the incoming ball as the positive direction. Number Type your answer here Units Choose your answer here
A baseball (m = 149 g) approaches a bat horizontally at a speed of 40.3 m/s (90 mi/h) and is hit straight back at a speed of 50.0 m/s (112 mi/h). If the ball is in contact with the bat for a time of 1.10 ms, what is the average force exerted on the ball by the bat? Neglect the weight of the ball, since it is so much less than the force of the bat. Choose the direction of the incoming ball as the positive direction. N
A 142g baseball is moving at 17.0 m / s in the + x direction. When hit with a bat by a baseball player, its final velocity is 21.0 m / s in the -x direction. The bat acts on the ball for 6.0 x 10⁻² s. What is the magnitude of the average force exerted by the bat on the ball?
An open train car, with a mass of 2050 kg, coasts along a horizontal track at the speed 2.792.79 m/s. The car passes under a loading chute and, as it does so, gravel falls vertically into it for 2.792.79 s at the rate of 475 kg/s. What is the car's speed vf after the loading is completed? Ignore rolling friction.
A car with mass mc=1270kg is traveling west through an intersection with a speed of vc=14.41m/s when a truck of mass mt=1740kg traveling south at vt=6.63m/s fails to yield. The vehicles collide, they stick together, and they slide on the asphalt which has a coefficient of kinetic friction of μk=0.500. Associate the positive x direction with east and the positive y direction with north. a. Using the symbols provided in the palette below as opposed to their numeric equivalents, enter an expression, in Cartesian unit-vector notation, for the velocity of the vehicles immediately after the collision, as they begin to slide as a composite object. b. How far, in meters, will the vehicles slide after the collision?
A 0.065-kg tennis ball moving to the right with a speed of 15 m/s is struck by a tennis racket, causing it to move to the left with a speed of 15 m/s. If the ball remains in contact with the racquet for 0.020 s, what is the magnitude of the average force experienced by the ball?
Spectators watch a bicycle stunt rider travel off the end of a 57.5° ramp, rise to the top of her trajectory and, at that instant, suddenly push her bike horizontally away from her so that she falls vertically straight down, reaching the ground 0.525 s later. How far (in m) from the rider does the bicycle land if the rider has a mass mrider = 58.4 kg and the bike has a mass mbike = 14.5 kg? Neglect air resistance and assume the ground is level. ?m
A tennis ball of mass 0.0591 kg is served. It strikes the ground with a velocity of 54.0 m/s (120 mi/h) at an angle of 22.0° below the horizontal. Just after the bounce it is moving at 53.0 m/s at an angle of 18.0° above the horizontal. a) If the interaction with the ground lasts 0.0620 s, what is the magnitude of the average force exerted by the ground on the ball?
A 340-g ball B is hanging from an inextensible cord attached to a support C . A 170-g ball A strikes B with a velocity v0 with a magnitude of 1.5 m/s at an angle of 60° with the vertical. Assuming perfectly elastic impact (e= 1) and no friction, determine the height h reached by ball B.