1. Calculate how much torque the hamstrings must generate to bring a leg swinging at 25...
1. Calculate how much torque the hamstrings must generate to bring a leg swinging at 25 rad/s angular to stop in 0.2 s, given that the leg’s moment of inertia is 0.8 kg-m2? (Rounding to the nearest integer)
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1. Calculate how much torque the hamstrings must generate to
bring a leg swinging at 25...
A flywheel has a moment of inertia of 0.015 kg m?. a How much torque do...
A flywheel has a moment of inertia of 0.015 kg m?. a How much torque do you need to create an angular acceleration of 3 rad/s“ ? b With this torque, what would the angular speed be after 6 seconds? C What would the angular momentum be after 6 seconds? d What would the kinetic energy of rotation be after 6 seconds?
A hollow sphere with moment of inertia I = 0.15 kg • m2 is rotating at...
A hollow sphere with moment of inertia I = 0.15 kg • m2 is rotating at 13 rad/s about an axis that passes through its center. Assuming a constant net torque is applied to the sphere, how much work is required to bring the sphere to a stop?
what net torque must be applied 1. A ball is rolled horizontally off a table with...
what net torque must be applied
1. A ball is rolled horizontally off a table with an initial speed of 0.24 m/s. A stop watch measures the ball's trajectory time from table to the floor to be 0.30 s. How far away from the table does the ball land? (g=9.8 m/s2 and air resistance is negligible) a. 0.055 m b. 0.072 m c. 1.2 m d. 1.9 m 2. A disk has a moment of inertia of 3.0 x 10-4...
Calculate the angular momentum, in kg · m2/s, of an ice skater spinning at 6.00 rev/s...
Calculate the angular momentum, in kg · m2/s, of an ice skater
spinning at 6.00 rev/s given his moment of inertia is 0.330 kg ·
m2.
(a) Calculate the angular momentum, in kg . m/s, of an ice skater spinning at 6.00 rev/s given his moment of inertia is 0.330 kg . m2. kg. m/s (b) He reduces his rate of spin (his angular velocity) by extending his arms and increasing his moment of inertia. Find the value of his...
A wheel with a moment of inertia of 5 kg-m² is turning at an angular velocity...
A wheel with a moment of inertia of 5 kg-m² is turning at an angular velocity of » = 25 rad/s. If the wheel is subject to a net torque of t= -0.75 N•m, how much time does the wheel take to come to a stop? A. 6.67 s B. 1.3 s C. 166.7 s D. 23.3 s E. 147.1 s
Calculate the rotational energy of a segment, given mass of the segment is 2.2 kg, moment...
Calculate the rotational energy of a segment, given mass of the segment is 2.2 kg, moment of inertia is 0.57 kg-m2, and angular velocity is 25 rad/s. a. 178 J b. 7.13 J c. 356 J d. 102 J
help me with 24! thanks!! A. 0.6 kgm2 B. 2.4 kgm2 O C.1.2 kgm2 19. Click...
help me with 24! thanks!!
A. 0.6 kgm2 B. 2.4 kgm2 O C.1.2 kgm2 19. Click Go. what is the angular acceleration of the platform? Calculate it using Newton's second law for rotational motion: torque = (moment of inertia) (angular acceleration) and then verify with the simulation. A. 1.6 rad/s2 B. 1 rad/s C. 0.83 rad/s2 20. Decrease the radius of the platform to 3 m (mass stays the same). What happens to the moment of inertia of the platform?...
A torque of 35.9 N · m is applied to an initially motionless wheel which rotates...
A torque of 35.9 N · m is applied to an initially motionless wheel which rotates around a fixed axis. This torque is the result of a directed force combined with a friction force. As a result of the applied torque the angular speed of the wheel increases from 0 to 10.3 rad/s. After 6.20 s the directed force is removed, and the wheel comes to rest 60.2 s later. (a) What is the wheel's moment of inertia (in kg...
A torque of 35.9 N · m is applied to an initially motionless wheel which rotates...
A torque of 35.9 N · m is applied to an initially motionless wheel which rotates around a fixed axis. This torque is the result of a directed force combined with a friction force. As a result of the applied torque the angular speed of the wheel increases from 0 to 9.7 rad/s. After 6.10 s the directed force is removed, and the wheel comes to rest 60.2 s later. (a) What is the wheel's moment of inertia (in kg...
Problem#3 (10 points): A flywheel with a mass moment of inertia is 0.72 Kg m2 starts...
Problem#3 (10 points): A flywheel with a mass moment of inertia is 0.72 Kg m2 starts from rest and accelerated at the rate of 3.4 rad/s2 for 40 s. a) Determine the net torque used for the acceleration of the flywheel. b) Determine the angular velocity reached after 15 s and 35 s. c) Determine the acceleration and compare with given acceleration. Then retardation was applied to this flywheel with a rate of 3.8 rad/s2 to decrease the angular velocity...
A flywheel has a moment of inertia of 0.015 kg m?. a How much torque do you need to create an angular acceleration of 3 rad/s“ ? b With this torque, what would the angular speed be after 6 seconds? C What would the angular momentum be after 6 seconds? d What would the kinetic energy of rotation be after 6 seconds?
what net torque must be applied
1. A ball is rolled horizontally off a table with an initial speed of 0.24 m/s. A stop watch measures the ball's trajectory time from table to the floor to be 0.30 s. How far away from the table does the ball land? (g=9.8 m/s2 and air resistance is negligible) a. 0.055 m b. 0.072 m c. 1.2 m d. 1.9 m 2. A disk has a moment of inertia of 3.0 x 10-4...
Calculate the angular momentum, in kg · m2/s, of an ice skater
spinning at 6.00 rev/s given his moment of inertia is 0.330 kg ·
m2.
(a) Calculate the angular momentum, in kg . m/s, of an ice skater spinning at 6.00 rev/s given his moment of inertia is 0.330 kg . m2. kg. m/s (b) He reduces his rate of spin (his angular velocity) by extending his arms and increasing his moment of inertia. Find the value of his...
A wheel with a moment of inertia of 5 kg-m² is turning at an angular velocity of » = 25 rad/s. If the wheel is subject to a net torque of t= -0.75 N•m, how much time does the wheel take to come to a stop? A. 6.67 s B. 1.3 s C. 166.7 s D. 23.3 s E. 147.1 s
help me with 24! thanks!!
A. 0.6 kgm2 B. 2.4 kgm2 O C.1.2 kgm2 19. Click Go. what is the angular acceleration of the platform? Calculate it using Newton's second law for rotational motion: torque = (moment of inertia) (angular acceleration) and then verify with the simulation. A. 1.6 rad/s2 B. 1 rad/s C. 0.83 rad/s2 20. Decrease the radius of the platform to 3 m (mass stays the same). What happens to the moment of inertia of the platform?...
Problem#3 (10 points): A flywheel with a mass moment of inertia is 0.72 Kg m2 starts from rest and accelerated at the rate of 3.4 rad/s2 for 40 s. a) Determine the net torque used for the acceleration of the flywheel. b) Determine the angular velocity reached after 15 s and 35 s. c) Determine the acceleration and compare with given acceleration. Then retardation was applied to this flywheel with a rate of 3.8 rad/s2 to decrease the angular velocity...
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