⦁ Imagine that you hold a 6.0kg lead ball in your hand with your arm bent. The ball is 0.35m from the elbow joint. The biceps muscle attaches to the forearm 0.050m from the elbow joint and exerts a force on the forearm that allows it to support the ball. The center of mass of the 12N forearm is 0.16m from the elbow joint. Estimate the magnitude of ⦁ The force that the biceps muscle exerts on the forearm ⦁ The force that the upper arm exerts on the forearm at the elbow

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Center of Gravity of a system

The centre of gravity is a property that is based on the geometry of a rigid body or any particle. It is described as an equilibrium point or a hypothetical location where the total weight of the body is concentrated.