The mass of the wheel barrow and bricks is 50kg and located a distance of 0.45m from where the wheel contacts the ground. The worker is holding the wheelbarrow a distance of 1m from where the wheel touches the ground.
Part 1: How much force must the worker apply to the wheelbarrow to lift the legs of the wheelbarrow off the ground?
Part 2: As he lifts the load of the wheelbarrow off the ground, what class of lever does this represent?
SOH CAH TOA
دUП ЧAП IUA
The person is performing a chest fly. The DB has a mass of 15kg. His entire upper extremity (arm, forearm, hand) combined has a mass of 8kg. The following forces have a point of application along the blue lever line from the AoR: pectoralis major 0.10m, Force of gravity on the arm 0.35m, and the dumbbell 0.7m. The pectoralis major pulls at an angle to the lever of 50deg , and the lever is 20 degrees from parallel with the ground.
Part 1: Draw a free body diagram representing this system. Include all required components.
Part 2: What are the parallel and rotational force components of the Force of the pectoralis major?
Part 3: Is Dumbbell causing a compression or distraction force on the shoulder?
Part 4: He generates 900N of force with his pectoralis muscles. Is he performing a concentric, eccentric or isometric contraction?
The figure skater begins her spin in position 1 with an angular velocity of 3.1 radians/sec. Her radius of gyration is 0.19m. When she pulls her arms inward in position 2 her radius of gyration is 0.1m. What is her angular velocity in radians/sec in position 2 .
I_(1)omega _(1)=I_(2)omega _(2) or ,(mk^(2))_(1)omega _(1)=(mk^(2))_(2)omega _(2)
The mass of the wheel barrow and bricks is 50kg and located a distance of 0.45m from where the wheel contacts the ground. The worker is holding the wheelbarrow a distance of 1m from where the wheel touches the ground.
Part 1: How much force must the worker apply to the wheelbarrow to lift the legs of the wheelbarrow off the ground?
Part 2: As he lifts the load of the wheelbarrow off the ground, what class of lever does this represent?
Ei=1T=F,*MAn SOH CAH TOA
Fps
The person is performing a chest fly. The DB has a mass of 15 kg. His entire upper extremity (arm, forearm, hand) combined has a mass of 8kg. The following forces have a point of application along the blue lever line from the AoR: pectoralis major 0.10m, Force of gravity on the arm 0.35m, and the dumbbell 0.7m. The pectoralis major pulls at an angle to the lever of 50, and the lever is 20 degrees from parallel with the ground
Part 1:Draw a free body diagram representing this system. Include all required components.
Part 2: What are the parallel and rotational force components of the Force of the pectoralis major?
Part 3: Is Dumbbell causing a compression or distraction force on the shoulder?
Ef=T=F*MAn SOH CAH TOA
Part 4: He generates 900N of force with his pectoralis muscles. Is he performing a concentric, eccentric or isometric contraction?
The figure skater begins her spin in position 1with an angular velocity of 3.1 radians/sec. Her radius of gyration is 0.19m. When she pulls her arms inward in position 2 her radius of gyration is 0.1m. What is her angular velocity in radians/sec in position 2.
L =I
Position 1
Position 2
IW1=I2W20r (mk2)W=(mk2)2W2