# physics

Calculate the force, required of the "deltoid" muscle to hold up the outstretched arm shown in the figure . The total mass of the arm is 2.9 kg.

1. 👍 0
2. 👎 0
3. 👁 247
asked by Cara
1. Sorry. No figure, no answer.

Do a torque balance. The answer will depend upon muscle angles and where they are attached.

1. 👍 0
2. 👎 0
posted by drwls

## Similar Questions

1. ### physics

Calculate the magnitude of the force FM required of the "deltoid" muscle to hold up the outstretched arm shown in the figure below. The total mass of the arm is 2.8 kg and θ = 11°. d=12cm D=24cm

asked by Rpbert on October 29, 2016
2. ### College Physics 1 (Algebra-based)

Calculate the force required of the "deltoid" muscle, Fm, to hold up the outstretched arm shown in the figure below. The total mass of the arm is 3.31kg. Assume that alpha = 15.2°, d = 12.0 cm and D = 24.0 cm. Figure: tinyurl

asked by collegegirl on April 10, 2016
3. ### college

The arm in the figure below weighs 44.5 N. The force of gravity acting on the arm acts through point A. Determine the magnitudes of the tension force t in the deltoid muscle and the force s of the shoulder on the humerus

asked by sarah on November 6, 2009
4. ### physics

An adult person is holding their arm straight out to their side. Their kid is hanging from their wrist, dangling. The kid has a mass of 20 kg. The length of adult’s arm between the shoulder and the wrist from which the kid is

asked by Jessica on July 12, 2012
5. ### Physics

Suppose the hand in holds a 20 kg mass . What force, FM, is required of the deltoid muscle? Assume the mass is 50 cm from the shoulder joint, the force of tension in the deltoid is directed 15° to the horizontal, and the mass of

asked by Anonymous on March 15, 2014
6. ### physics

Suppose the hand shown in (Figure 1) holds an 8.9-kg mass. The total mass of the arm is 3.3 kg. What force, FM, is required of the deltoid muscle, assuming the mass is 52 cm from the shoulder joint? So ive tried this problem

asked by arshi on November 18, 2015
7. ### Physics

The standard man in the figure below holds with his left arm vertically a dumbbell of mass M = 5,471 g with the intention to do concentration curls. For the position shown, we consider the following four major forces: the weight

asked by Sam on October 2, 2009
8. ### Biomechanics

Shoulder abduction = 15¡ã Abduction acceleration = 50/rad/s/s Abduction velocity = 20 rad/s Radius of gyration and COM location from joint = 25cm Mass of hand + Arm = 8 kg Force of middle deltoid =400N Middle deltoid only active

asked by Ming on March 29, 2015
9. ### physics

The drawing shows an outstretched arm (0.61 m in length) that is parallel to the floor. The arm is pulling downward against the ring attached to the pulley system, in order to hold the 126-N weight stationary. To pull the arm

asked by regn on April 21, 2016
10. ### Physics Classical Mechanics

You are holding a ball of mass m2 in your hand. In this problem you will solve for the upward force T⃗ that the tendon of your biceps muscle exerts to keep the forearm horizontal and the downward force F⃗ that the upper arm

asked by A on November 26, 2013

More Similar Questions