A high jumper (mass=70 kg) is competing in an Olympic event. The height she was trying...
A high jumper (mass=70 kg) is competing in an Olympic event. The height she was trying to clear was when her CoG was 2.05 m above the ground (CoG was 1 m above ground at takeoff). While making the jump, the jumper’s foot was in contact with the ground for 0.22s during the upward phase of the jump. a. How much change in potential energy must the jumper have to just clear the bar? (1 pt) b. What is the minimum value her initial vertical velocity must be if she were to just clear the bar (use concept of energy to solve this)? (1 pt) c. What is the average vertical net resultant force experienced by the jumper? (1 pt) d. What was the total impulse exerted on the jumper? (1 pt) e. What was the average Normal Force or Ground Reaction Force during the jump? (1 pt) f. How much work was done on the jumper by the ground during the upward phase? (1 pt) g. What was her vertical velocity as she hit the mat, if she first makes contact with the mat when her CoG was at a height of 0.4m?
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A high jumper (mass=70 kg) is competing in an Olympic event. The
height she was trying...
Susan performs a high jump where she has an initial vertical velocity of 4.04 m/s. If...
Susan performs a high jump where she has an initial vertical velocity of 4.04 m/s. If her center of gravity is 1.04 meters above the ground at takeoff, what is the maximum height she will be able to clear in meters (m) if her center of gravity needs to just clear the bar for the jump to be successful?
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...
Froghopper insects have a typical mass of around 11.5 mg and can jump to a height...
Froghopper insects have a typical mass of around 11.5 mg and can jump to a height of 50.8 cm. The takeoff velocity is achieved as the insect flexes its legs over a distance of approximately 2.00 mm. Assume that the jump is vertical and that the froghopper undergoes constant acceleration while its feet are in contact with the ground. Ignore air resistance. What is the acceleration of the insect during the time of the jump (before it leaves the ground)?...
1. An Olympic diver drops from the 10 meter platform with an initial vertical velocity of...
1. An Olympic diver drops from the 10 meter platform with an initial vertical velocity of 0.0 m/s. If the diver needs to clear the edge of the pool by 5 m, what was the horizontal velocity of the diver at the instant of takeoff? What was the horizontal velocity right before landing? (You may assume that the edge of the platform was directly above the edge of the pool.) 2. A long jumper leaves the ground at an angle...
These are biomechanics questions. They are not related to each other. A 70 kg high jumper...
These are biomechanics questions. They are not related to each
other.
A 70 kg high jumper is attempting to clear a bar at a height of 2 meters. The coefficient of friction between his foot and the ground is 0.35. The resultant force of all of the forces just prior o take off when his foot is stillin contact with the ground is equal to 400 Newtons straight up What is the magnitude and direction of all of the forces...
Froghopper insects have a typical mass of around 13.1 mg and can jump to a height...
Froghopper insects have a typical mass of around 13.1 mg and can jump to a height of 45.8 cm. The takeoff velocity is achieved as the insect flexes its legs over a distance of approximately 2.00 mm. Assume that the jump is vertical and that the froghopper undergoes constant acceleration while its feet are in contact with the ground. Ignore air resistance. What is the acceleration of the insect during the time of the jump (before it leaves the ground)?...
Help these athletes out. A) Determine the vertical impulse required for a 49 kg high jumper...
Help these athletes out. A) Determine the vertical impulse required for a 49 kg high jumper to clear a height of 6 ft 8 in. Assume that the high jumper's center of mass starts at 3 ft 6 in and that his center of mass just clears the bar. (positive up) (include units with answer) B) A golfer playing on a level course hits a 43.0 g golf ball that leaves the tee at a 25° upward angle and hits...
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...
Simone, a 47 kg gymnast, is performing the last tumbling pass of her floor routine. The...
Simone, a 47 kg gymnast, is performing the last tumbling pass of
her floor routine. The tumbling pass involves running as fast as
possible then jumping into the air to complete a double layout with
a twist (this exact maneuver, the double layout with a twist, is
not important, but a photo is provided on Canvas to show you what
this maneuver is). The instant before she jumps into the air, her
center of mass (COM) is 0.90 m above...
please answer both questions ty so much Two forces are acting on a 0.250 kg hockey...
please answer both questions ty so much
Two forces are acting on a 0.250 kg hockey puck as it slides along the ice. The first force has a magnitude of 0.400 N and points 35.0 north of east. The second force has a magnitude of 0.580 N and points 65,0° north of east. If these are the only two forces acting on the puck, what will be the magnitude and direction of the puck's acceleration? Enter the direction as an...
1. An Olympic diver drops from the 10 meter platform with an initial vertical velocity of 0.0 m/s. If the diver needs to clear the edge of the pool by 5 m, what was the horizontal velocity of the diver at the instant of takeoff? What was the horizontal velocity right before landing? (You may assume that the edge of the platform was directly above the edge of the pool.) 2. A long jumper leaves the ground at an angle...
These are biomechanics questions. They are not related to each
other.
A 70 kg high jumper is attempting to clear a bar at a height of 2 meters. The coefficient of friction between his foot and the ground is 0.35. The resultant force of all of the forces just prior o take off when his foot is stillin contact with the ground is equal to 400 Newtons straight up What is the magnitude and direction of all of the forces...
Froghopper insects have a typical mass of around 13.1 mg and can jump to a height of 45.8 cm. The takeoff velocity is achieved as the insect flexes its legs over a distance of approximately 2.00 mm. Assume that the jump is vertical and that the froghopper undergoes constant acceleration while its feet are in contact with the ground. Ignore air resistance. What is the acceleration of the insect during the time of the jump (before it leaves the ground)?...
Simone, a 47 kg gymnast, is performing the last tumbling pass of
her floor routine. The tumbling pass involves running as fast as
possible then jumping into the air to complete a double layout with
a twist (this exact maneuver, the double layout with a twist, is
not important, but a photo is provided on Canvas to show you what
this maneuver is). The instant before she jumps into the air, her
center of mass (COM) is 0.90 m above...
please answer both questions ty so much
Two forces are acting on a 0.250 kg hockey puck as it slides along the ice. The first force has a magnitude of 0.400 N and points 35.0 north of east. The second force has a magnitude of 0.580 N and points 65,0° north of east. If these are the only two forces acting on the puck, what will be the magnitude and direction of the puck's acceleration? Enter the direction as an...
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