Imagine that you hold a 6.0-kg lead ball in your hand with your arm bent. The ball is 0.35 m from the elbow joint. The biceps muscle attaches to the forearm 0.050 m from the elbow joint and exerts a force on the forearm that allows it to support the ball. The center of mass of the 12-N forearm is 0.16 m from the elbow joint. Estimate the magnitude of (a) the force that the biceps muscle exerts on the forearm and (b) the force that the upper arm exerts on the forearm
Imagine that you hold a 6.0-kg lead ball in your hand with your arm bent. The ball is 0.35 m from the elbow joint. The biceps muscle attaches to the forearm 0.050 m from the elbow joint and exerts a force on the forearm that allows it to support the ball. The center of mass of the 12-N forearm is 0.16 m from the elbow joint. Estimate the magnitude of (a) the force that the biceps muscle exerts on the forearm and (b) the force that the upper arm exerts on the forearm
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Physics problem involving torque and forces
Transcribed Image Text:Imagine that you hold a 6.0-kg lead ball in your hand with
your arm bent. The ball is 0.35 m from the elbow joint. The
biceps muscle attaches to the forearm 0.050 m from the
elbow joint and exerts a force on the forearm that allows it
to support the ball. The center of mass of the 12-N forearm
is 0.16 m from the elbow joint. Estimate the magnitude of
(a) the force that the biceps muscle exerts on the forearm
and (b) the force that the upper arm exerts on the forearm
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