A 66 kg gymnast is at the top of a swing on the high bar. Her...
Homework Answers
The kinetic energy is given by KE = 1/2 mv^2 = 174.57 J
The potential energy is given by PE = mgh = 2457.84 J
The total mechanical energy is given by E = KE + PE = 2632.41 J
2. At the top of a giant swing on the high bar, a 50kg gymnast's velocity...
2. At the top of a giant swing on the high bar, a 50kg gymnast's velocity is 1m/s and he is 3.5m high. What is the gymnast's total mechanical energy?
Name 3. Gymnast. A gymnast holds onto a single bar with both hands with her arms...
Name 3. Gymnast. A gymnast holds onto a single bar with both hands with her arms outstretched as shown to the right. She swings around the bar in a full circle. Assume the only forces acting on her are gravity and a normal force between the bar and her hands. The gymnast's mass is 35 kg and the distance from her outstretched hands to her feet is 2.5 m. A. What is the torque on the gymnast's body around 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...
questions with answers the cylinder's vertical velocity is zero? 10. A gymnast falls from the high...
questions with answers
the cylinder's vertical velocity is zero? 10. A gymnast falls from the high bar and lands on a 10 cm thick gymnastics mat. The gymnast strikes the back of his head against the mat during his landing. His head is moving at 7 m/s when it first strikes the mat. The mass of his head is 5 kg. The impact ends when the gymnast's head comes to a stop after deflecting the mat 6.5 cm. How much...
W ull unguial velocity of 8 a. (1 point) How much force does the gymnast need...
W ull unguial velocity of 8 a. (1 point) How much force does the gymnast need to produce with their hands on the bar in order to maintain their grip (i.e. what is the centripetal force required for rotation)? tc-m.ar CR=r wrth - 1145 misrad -92.6 Fc-4.640N . (0.5 points) All else being equal, if the gymnast's center of mass is located 1.5 m from the axis of rotation (instead of 1.45 m), how would that affect the force required...
A 54 kg pole vaulter intends to pass over a 6.4-meter high bar. She needs to...
A 54 kg pole vaulter intends to pass over a 6.4-meter high bar. She needs to maintain a minimal speed of 0.72 m/s at the top in order to pass the bar. What is the minimum speed at which she should run in order to attain the height? Neglect air resistance, as well as any energy absorbed by the pole Answer in units of m/s and round to one decimal place. Hints: Mechanical energy is conserved during vaulting. KE at...
QUESTION 3 A 54 kg pole vaulter intends to pass over a 6.9-meter high bar. She...
QUESTION 3 A 54 kg pole vaulter intends to pass over a 6.9-meter high bar. She needs to maintain a minimal speed of 0.79 m/s at the top in order to pass the bar. What is the minimum speed at which she should run in order to attain the height? Neglect air resistance, as well as any energy absorbed by the pole. Answer in units of m/s and round to one decimal place. Hints: Mechanical energy is conserved during vaulting....
What is true about the moment of inertia about the bar during the rotation? (a gymnast...
What is true about the moment of inertia about the bar during the rotation? (a gymnast during a routine) It was greatest at the top. It did not change. She flexed at her hips and extended at her shoulders to increase the moment of inertia. This is not the correct answer. Please review learning outcomes 9.1 and 9.3. It was lowest near half-way up. Any idea what the answer could be?
A 44-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she...
A 44-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is 1.4 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar. m
A 69-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she...
A 69-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.5 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar. _____m
2. At the top of a giant swing on the high bar, a 50kg gymnast's velocity is 1m/s and he is 3.5m high. What is the gymnast's total mechanical energy?
Name 3. Gymnast. A gymnast holds onto a single bar with both hands with her arms outstretched as shown to the right. She swings around the bar in a full circle. Assume the only forces acting on her are gravity and a normal force between the bar and her hands. The gymnast's mass is 35 kg and the distance from her outstretched hands to her feet is 2.5 m. A. What is the torque on the gymnast's body around 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...
questions with answers
the cylinder's vertical velocity is zero? 10. A gymnast falls from the high bar and lands on a 10 cm thick gymnastics mat. The gymnast strikes the back of his head against the mat during his landing. His head is moving at 7 m/s when it first strikes the mat. The mass of his head is 5 kg. The impact ends when the gymnast's head comes to a stop after deflecting the mat 6.5 cm. How much...
W ull unguial velocity of 8 a. (1 point) How much force does the gymnast need to produce with their hands on the bar in order to maintain their grip (i.e. what is the centripetal force required for rotation)? tc-m.ar CR=r wrth - 1145 misrad -92.6 Fc-4.640N . (0.5 points) All else being equal, if the gymnast's center of mass is located 1.5 m from the axis of rotation (instead of 1.45 m), how would that affect the force required...
A 54 kg pole vaulter intends to pass over a 6.4-meter high bar. She needs to maintain a minimal speed of 0.72 m/s at the top in order to pass the bar. What is the minimum speed at which she should run in order to attain the height? Neglect air resistance, as well as any energy absorbed by the pole Answer in units of m/s and round to one decimal place. Hints: Mechanical energy is conserved during vaulting. KE at...
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