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3. There is a lot of physics in a single jump. Suppose there is a 25...
5. Darel Griffith is a storied, past NBA player for the Utah Jazz and the star...
5. Darel Griffith is a storied, past NBA player for the Utah Jazz and the star of the 1980 Men's NCAA basketball champions: the University of Louisville Cardinals. He and another NBA player named Michael Jordan hold the record for the highest vertical jump in the NBA: 48 inches (or 1.2 meters) a. Calculate Darrell Griffith's speed just as his shoes leave the floor b. If it takes Darrell Griffith (nicknamed Dr. Dunkenstein) 0.3 seconds to jump off the floor,...
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...
Suppose you want to jump up first by crunching down and then pushing off the ground....
Suppose you want to jump up first by crunching down and then pushing off the ground. You initially lower your center of mass by 0.2m. The average force exerted by the floor on you is three times your weight. What is your upward speed as you pass through your standing position just as you are leaving the floor?
This problem is taken from Ahlborn's Zoological Physics, P 5.2. Two young people jump down from...
This problem is taken from Ahlborn's Zoological Physics, P 5.2. Two young people jump down from a height of h = 2.0 m onto the forest floor which has a mud hole and a rocky flat. The boy (M = 70 kg) lands with stiff legs on the muddy ground, which "gives" so that he depresses the ground by Delta_y = 5 cm when being decelerated from the impact velocity U_0 to 0. Determine the impact speed U_0. Calculate the...
In 2014, Damian Walters demonstrated that he could run through a vertical loop (after a lot...
In 2014, Damian Walters demonstrated that he could run through a vertical loop (after a lot of failed attempts). What minimum running speed did he need to do it? Assume the loop has a radius of 1.96 m, that Damian's mass is 76.5 kg, that he stays in contact with the loop at all times, and (unrealistically) that you can neglect friction and drag forces. Also, keep in mind that it's Damian's center of mass that matters, which is approximately...
7) A 21-ton (42,000-lb) truck collides with an 2300-lb car and causes a lot of damage...
7) A 21-ton (42,000-lb) truck collides with an 2300-lb car and causes a lot of damage to the car. During the collision A) the force on the truck due to the collision is greater than the force on the car, and the truck experiences greater acceleration. B) the force on the truck due to the collision is greater than the force on the car, and the car experiences greater acceleration. C) the forces on the truck and car are equal,...
1. A ball of weight 5.0 newtons is thrown towards the ceiling and hits with the...
1. A ball of weight 5.0 newtons is thrown towards the ceiling and hits with the speed shown at an angle = 37° from the vertical. The ball is in contact with the ceiling for 0.1 second. Use cos(37°) = 0.8 and sin(37°) = 0.6 a. Determine the magnitude and direction of the average acceleration of the ball while it is in contact with the ceiling. (+4) 20" magnitude -.. direction (up/down) = b. Draw the free body diagram showing...
A 65 kg kangaroo jumps vertically to a height of 1.8 m. Assume that there is...
A 65 kg kangaroo jumps vertically to a height of 1.8 m. Assume that there is very little horizontal motion, and that air resistance is negligible. a) What is its potential energy at the top of its jump? b) What must its kinetic energy have been at the beginning of the jump, the moment after its feet left contact with the ground? c) Based on your answer from (b), what was the kangaroo's initial upward velocity, just after leaving the...
a) A man jumps off the roof of an office building onto a trampoline 30 m...
a) A man jumps off the roof of an office building onto a trampoline 30 m below. His speed is 5 m/s when he umps from the roof and his mass (with all of her gear) is 60 kg. How high will he go when he bounces back up from the trampoline? You can assume his speed at the top of his bounce is zero. b) Describe the changes in mechanical energy that take place during his jump. c) A...
Pls help. I understand that this is a lot. I only need help from letter f...
Pls help. I understand that this is a lot. I only need
help from letter f through letter h. I understand the others. thank
you.
F =30N 5 kg 0=50 u=0.3 A 5 kg mass is pulled along with an applied force of 30 N at 5 degrees. There is a 0.3 coefficient of friction between the mass and the floor. The mass starts from rest and moves 3.0 meters. a.) What is the weight of the mass? b.) What...
5. Darel Griffith is a storied, past NBA player for the Utah Jazz and the star of the 1980 Men's NCAA basketball champions: the University of Louisville Cardinals. He and another NBA player named Michael Jordan hold the record for the highest vertical jump in the NBA: 48 inches (or 1.2 meters) a. Calculate Darrell Griffith's speed just as his shoes leave the floor b. If it takes Darrell Griffith (nicknamed Dr. Dunkenstein) 0.3 seconds to jump off the floor,...
This problem is taken from Ahlborn's Zoological Physics, P 5.2. Two young people jump down from a height of h = 2.0 m onto the forest floor which has a mud hole and a rocky flat. The boy (M = 70 kg) lands with stiff legs on the muddy ground, which "gives" so that he depresses the ground by Delta_y = 5 cm when being decelerated from the impact velocity U_0 to 0. Determine the impact speed U_0. Calculate the...
7) A 21-ton (42,000-lb) truck collides with an 2300-lb car and causes a lot of damage to the car. During the collision A) the force on the truck due to the collision is greater than the force on the car, and the truck experiences greater acceleration. B) the force on the truck due to the collision is greater than the force on the car, and the car experiences greater acceleration. C) the forces on the truck and car are equal,...
1. A ball of weight 5.0 newtons is thrown towards the ceiling and hits with the speed shown at an angle = 37° from the vertical. The ball is in contact with the ceiling for 0.1 second. Use cos(37°) = 0.8 and sin(37°) = 0.6 a. Determine the magnitude and direction of the average acceleration of the ball while it is in contact with the ceiling. (+4) 20" magnitude -.. direction (up/down) = b. Draw the free body diagram showing...
a) A man jumps off the roof of an office building onto a trampoline 30 m below. His speed is 5 m/s when he umps from the roof and his mass (with all of her gear) is 60 kg. How high will he go when he bounces back up from the trampoline? You can assume his speed at the top of his bounce is zero. b) Describe the changes in mechanical energy that take place during his jump. c) A...
Pls help. I understand that this is a lot. I only need
help from letter f through letter h. I understand the others. thank
you.
F =30N 5 kg 0=50 u=0.3 A 5 kg mass is pulled along with an applied force of 30 N at 5 degrees. There is a 0.3 coefficient of friction between the mass and the floor. The mass starts from rest and moves 3.0 meters. a.) What is the weight of the mass? b.) What...
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