At the NFL Combine, a football player is attempting the vertical jump test. They initiate their...
At the NFL Combine, a football player is attempting the vertical jump test. They initiate their jump with an initial vertical velocity of 5.8 m/s. After 0.42 s, what will be their vertical displacement?
a. 3.30 m
b. 2.78 m
c. 1.65 m
d. 5.80 m
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At the NFL Combine, a football player is attempting the vertical
jump test. They initiate their...
A 75-kg volleyball player performs a maximum-effort vertical jump with an initial velocity of 3 m/s....
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...
A high jumper is attempting to jump over a crossbar that is placed at a height...
A high jumper is attempting to jump over a crossbar that is placed at a height of 2.0 m. The high jumper leaves the ground with an initial vertical velocity of 5.98 m/s. Calculate the peak height of the jump. Will the high jumper clear the crossbar? a. Yes, they will clear the crossbar by 0.44 m b. Yes, they will clear the crossbar by 0.26 m c. No, they will miss the crossbar by 0.18 m d. No, they...
Brian is attempting to high jump over a crossbar at 2.44m (8ft). At the instant of...
Brian is attempting to high jump over a crossbar at 2.44m (8ft). At the instant of takeoff (when he is no longer in contact with the ground) his vertical velocity is 4.0m/s and his center of gravity is 1.25 m high A. What is Brian’s acceleration at the instant of takeoff? B. How much time elapses after takeoff until it reaches his peak height? C. What peak height does Brian’s center of gravity achieve?
A 110-kg basketball player can jump a vertical distance of 1.3 meters (approx. 4 feet). For...
A 110-kg basketball player can jump a vertical distance of 1.3 meters (approx. 4 feet). For this entire problem, assume that the athlete has NO horizontal motion. (Ignore air resistance.) 6. (2 pts.) What must be the player's initial vertical velocity as he leaves the ground? A. 3.4m/s B. 5.0 m/s D. 9.2 m/s E II m/s C. 7.6 m/s 7. (I pt.) At the moment the athlete reaches his maximum height, which of the following is/are equal to zere?...
to stop a 90 kg basketball player landing from a jump with a downward vertical...
to stop a 90 kg basketball player landing from a jump with a downward vertical How much work is required velocity of 3.48 m/s at the point of ground contact? Assume the basketball player has no potential energy, only kinetic energy. (3 points) How much force is required if the basketball player (Question #2) lands with a 'hard' or 'soft' landing? a For 'soft' landing assume the basketball player's center of mass is displaced 0.65 m. (2 point) b....
Anelite Basketball player has a 39 inch standing vertical, meaning that this person can jump straight upward to a heigh...
Anelite Basketball player has a 39 inch standing vertical, meaning that this person can jump straight upward to a height of 39 inches. (For all parts of this problem neglect air resistance) To three significant digits what is the velocity, in m/s, of the basketball player the instant leaving the ground? m/s How long total is the basketball player in the air? (round to 3 significant digits) What are the magnitude and direction of the acceleration at each instance? (Direction...
8. A 100 kg person performs a maximum vertical jump with an initial velocity of 4...
8. A 100 kg person performs a maximum vertical jump with an initial velocity of 4 m/s. (Rounding to the nearest integer) a. What is the performer’s maximum kinetic energy during the jump? [A] b. What is the performer’s maximum potential energy during the jump? [B] c. The performer’s center of mass elevated ___[C]____ cm during the jump. d. How much power the performer must generate if she accelerates to 4 m/s in 0.2 s? [D]
Basketball player Darrell Griffith is on record as attaining a standing vertical jump of 1.2 m....
Basketball player Darrell Griffith is on record as attaining a standing vertical jump of 1.2 m. (This means that he moved upward by 1.2 m after his feet left the floor. Griffith weighed 890 N. A-What is his speed as he leaves the floor? B-If the time of the part of the jump before his feet left the floor was 0.300 s , what was the magnitude of his average acceleration while he was pushing against the floor? C-Use Newton's...
Two football players collide head-on in midair while chasing a pass. The first player has a...
Two football players collide head-on in midair while chasing a pass. The first player has a 110 kg mass and an initial velocity of 4.10 m/s in the positive x direction, while the second player has a 125 kg mass and initial velocity of 3.40 m/s in the negative x direction. What is the x component of their velocity just after impact if they cling together? (Indicate the direction with the sign of your answer.)
Q 7.31: A football player with a mass of 110 kg runs into a stationary tackling...
Q 7.31: A football player with a mass of 110 kg runs into a stationary tackling sled that has a mass of 250 kg. Both the player and sled move together and come to rest 25 cm from the impact. If the coefficient of kinetic the ground is 0.5, what was the initial speed of the football player? A 6.6 m/s B 9.8 m/s C 2.2 m/s D 5.1 m/s E 8.0 m/s
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...
A 110-kg basketball player can jump a vertical distance of 1.3 meters (approx. 4 feet). For this entire problem, assume that the athlete has NO horizontal motion. (Ignore air resistance.) 6. (2 pts.) What must be the player's initial vertical velocity as he leaves the ground? A. 3.4m/s B. 5.0 m/s D. 9.2 m/s E II m/s C. 7.6 m/s 7. (I pt.) At the moment the athlete reaches his maximum height, which of the following is/are equal to zere?...
to stop a 90 kg basketball player landing from a jump with a downward vertical How much work is required velocity of 3.48 m/s at the point of ground contact? Assume the basketball player has no potential energy, only kinetic energy. (3 points) How much force is required if the basketball player (Question #2) lands with a 'hard' or 'soft' landing? a For 'soft' landing assume the basketball player's center of mass is displaced 0.65 m. (2 point) b....
Anelite Basketball player has a 39 inch standing vertical, meaning that this person can jump straight upward to a height of 39 inches. (For all parts of this problem neglect air resistance) To three significant digits what is the velocity, in m/s, of the basketball player the instant leaving the ground? m/s How long total is the basketball player in the air? (round to 3 significant digits) What are the magnitude and direction of the acceleration at each instance? (Direction...
Q 7.31: A football player with a mass of 110 kg runs into a stationary tackling sled that has a mass of 250 kg. Both the player and sled move together and come to rest 25 cm from the impact. If the coefficient of kinetic the ground is 0.5, what was the initial speed of the football player? A 6.6 m/s B 9.8 m/s C 2.2 m/s D 5.1 m/s E 8.0 m/s
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