Question

You hold a 6.0-kg weight in your hand with your forearm making a 90° angle with your upper arm, as shown below. Your biceps muscle exerts an upward force Fm that acts 3.4 cm from the pivot point O at the elbow joint. Model the forearm and hand as a 30.0-cm-long uniform rod with a mass of 1.0 kg. (a) Find the magnitude of Fm if the distance from the weight to the pivot point (elbow joint) is 30 cm, and (b) find the magnitude and direction of the force exerted on the elbow joint by the upper arm. (562 N, -493 N)

          You hold a 6.0-kg weight in your hand with your forearm making a 90° angle with your upper arm, as shown below. Your biceps muscle exerts an upward force Fm that acts 3.4 cm from the pivot point O at the elbow joint. Model the forearm and hand as a 30.0-cm-long uniform rod with a mass of 1.0 kg. (a) Find the magnitude of Fm if the distance from the weight to the pivot point (elbow joint) is 30 cm, and (b) find the magnitude and direction of the force exerted on the elbow joint by the upper arm. (562 N, -493 N)

You hold a 6.0-kg weight in your hand with your forearm making a 90° angle with your upper arm, as shown below. Your biceps muscle exerts an upward force Fm that acts 3.4 cm from the pivot point O at the elbow joint. Model the forearm and hand as a 30.0-cm-long uniform rod with a mass of 1.0 kg. (a) Find the magnitude of Fm if the distance from the weight to the pivot point (elbow joint) is 30 cm, and (b) find the magnitude and direction of the force exerted on the elbow joint by the upper arm. (562 N, -493 N)

Added by Joshua G.

Question

Please give Ace some feedback