A muscle inserts 1.5 cm from the joint axis and exerts 300 N of force at an angle of pull of 60 degrees. How much torque is produced by this muscle? In your work, specify which element of the torque you manipulated.
A muscle inserts 1.5 cm from the joint axis and exerts 300 N of force at...
Steven's biceps muscle inserts at a spot 3 cm from his elbow joint, and the center of his hand is 33 cm from the spot where the biceps inserts. If Steven flexes his arm (contracting his biceps), what is the value of... 1. The length of the 'in lever' (in cm)? 2. The length of the 'out lever' (the part of the lever system that moves) (in cm)? 3. If Steven lifts a 12 kg bowling ball, how much tension...
For problems 5-8, the joint is moving through its range of motion. As it does this, the angle between the muscle and the long axis of the bone, theta, changes. Assume that the muscle force is a constant 500 N and the distance from axis of rotation to the muscle insertion, d, is 0.02 m. Find the torque for each angle theta. Refer to the figure below. (HINT: Calculate the torque using T = F * sin(angle) * d.) 5....
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.5×106 N , one an angle 11 ∘ west of north and the other an angle 11 ∘ east of north, as they pull the tanker a distance 0.66 km toward the north. a. What is the total work they do on the supertanker? Express your answer using two significant figures.
8. A person exerts a force of 40 N on the end of a 120 cm wide door. Find the torque magnitude if the force is exerted at an angle of 60° to the door. 4800 N.m a. 48 N.m b. 24 N.m C. 42 N.m d.
Problem 10: The upper leg muscle (quadriceps) exerts a force of FQ=1390 N, which is carried by a tendon over the kneecap (the patella) at the angles shown in the figure. Part (a) Find the magnitude of the force, in newtons, exerted by the kneecap on the upper leg bone (the femur) at the point P. Part (b) What angle does the force from the kneecap act at, in degrees measured counterclockwise from the positive x-direction shown in the figure?
he upper leg muscle (quadriceps) exerts a force of FQ = 1100 N, which is carried by a tendon over the kneecap (the patella) at the angles shown in the figure below. Find the magnitude in newtons and direction in degrees counter-clockwise from an axis directed to the left of the force exerted by the kneecap on the upper leg bone (the femur). magnitude N direction ° counter-clockwise from an axis directed to the left
When you hold your arm outstretched, it's supported primarily by the deltoid muscle. The given figure shows a case in which the deltoid exerts a 67 N force at 15 degrees to the horizontal. If the force-application point is 18 cm horizontally from the shoulder joint, what torque does the deltoid exert about the shoulder?
A student in a lab exerts a 25 N force to pull a block a distance of 48 cm. If a total of 11 J of work is done. What is the angle between the force and the displacement?
An athlete is measuring the force by their flexor muscle by pulling a rope horizontally at a constant force. While pulling the rope the muscle applies a force on the forearm an angle of 71° as shown in the diagram. While keeping your forearm completely vertical, the tension in the rope is at 185N. The athlete's muscle is attached to the forearm 5 cm from the elbow joint and that the weight of your forearm is 22 N with a...
Imagine a bone with a muscle having an insertion angle of 15? , with a distance between the point of insertion and the center of the joint of 1.2 cm. The muscle can generate a maximum isometric tension of 1.3 N.How much torque (in Nm) can the muscle generate at the joint? What force (in N) can be generated at the output end of the bone if the length of the out-lever is 14 cm? Answer The muscle can generate...