A 70kg volleyball player generates an average vertical ground reaction force of 1548N over a 0.47 second period of time while jumping to block an opposing player. What impulse was generated during this motion? How high will she jump?
here,
mass of volleyball , m = 70 kg
the force applied , F = 1548 N
time taken , t = 0.47 s
the impuse delivered , I = 1548 /0.47 kg.m/s
I = 727.56 kg.m/s
let the speed of player after the jump be v
I = m * v
727.56 = 70 * v
solving for v
v = 10.4 m/s
the speed of player after the jump is 10.4 m/s
the maximum height , hm = v^2 / 2g
hm = 10.4^2 /(2*9.81)
hm = 5.5 m
A 70kg volleyball player generates an average vertical ground reaction force of 1548N over a 0.47...
A 75-kg volleyball player performs a maximum-effort vertical jump with an initial velocity of 3 m/s. The player leaves the ground with an upright body position and also touches down with the same body position. Answer the following: ua A. How much will the player's center of mass (COM) travel in the air along the vertical direction during the ascending phase of the jump? Compute the maximum kinetic energy of the player during the jump. C. Compute the maximum potential...
Using the impulse-momentum relationship to support your answer, explain how a volleyball player might decrease ground reaction force, applied to the musculoskeletal system, during a jump-landing?
Using the impulse-momentum relationship to support your answer, explain how a volleyball player might decrease ground reaction force, applied to the musculoskeletal system, during a jump-landing?
While playing volleyball, a player sees the ball coming toward them with a velocity of 10 m/s. They hit the ball, and the ball rebounds at an angle of 30owith a velocity of 15 m/s. Find the impulse and find the average force applied to the ball during impact if the mass of the ball is 1 kg and the time of the impulse was 2 ms.
The following figure shows the kinematics and vertical component of the ground reaction force during a vertical jump. On the figure, indicate and explain the following events: (1) Takeoff (2) Peak vertical velocity (3) Jump impulse (4) What is the relationship between force and acceleration? Velocity Acceleration Force 1800-24 6 F0.6 120016 4 0.4 Body weight 600-8 2 0.2 0- 0 -600-8 IE-2 -0.2 0.2 0.4 0.6 0.8 Time (s) Velocity Acceleration Force 1800-24 6 F0.6 120016 4 0.4 Body...
The ground reaction force acting on Carter during his long jump is 4500N acting forward and upward at an angle of 78 degrees from horizontal. Carter’s mass is 70kg. Other than gravity, this is the only external force acting on Carter A. What is the vertical component of this ground reaction force? B. What is the horizontal component of this ground reaction force? C. How big is the net force, the sum of all the external forces, acting on Carter?...
Problem 39. 39. A jogger generates an impulse on the ground during the time from initial contact (heel strike) to foot lift off (toe .Total Measured Vertical Impulse __ Estimated Vertical Impulse Force INI 2000..- 1000 Time [s 0 0.2 0.8 1 Heel Strike Toe Off . The vertical force component for heel-toe running typically has two peaks, the first due to iniial heel (or toe) impact on the ground and the second when the foot supports full body weight....
A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. Starting from rest, a 59.0 kg athlete jumps down onto the platform from a height of 0.590 m. While she is in contact with the platform during the time interval 0 < t < 0.8 s, the force she exerts on it is described by the function below. F = (9...
GRF: Ground Reaction Forces Jump Impulse: Takeoff Velocity: Jump-height: An athlete did a vertical jump. The measured GRF is shown in the figure below. How high can she jump? 1300 1250 1200 1150 1100 1050 1000 950 900 850 GRF [N] 0 + 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 0.95 1 1.05 1.1 1.15 1.2 1.25 1.3 1.35 1.4 1.45 1.5 1.55 1.6 1.65 1.7 1.75 1.8 1.85 1.9 1.95 2 2.05 2.1 2.15 2.2 time [s]
A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. Starting from rest, a 68.0-kg athlete jumps down onto the platform from a height of 0.730 m. While she is in contact with the platform during the time interval 0 < t < 0.800 s, the force she exerts on it is described by the function F = 9 200t −...