Exerting force in a porportional manner, not using too much or too little force.
It's called the stretch reflex and involves muscle spindles which are sensorimotor organs located in skeletal muscle.
to make hard work easier for you
The desk is exerting a gravitational force, equal in magnitude but opposite in direction to the force of gravity acting on the book. This force has a magnitude of 4.9 newtons (N) downwards, as gravity pulls objects with a force of 9.8 N/kg and the book has a mass of 0.5 kg.
Because the force of gravity exerting on objects on the moon is much lower than that of the earth.
Assuming the dumbbell is suspended at a constant height from the ground and not moving you are exerting 89 Newtons (N). Force (N) = Mass (kg) x Acceleration due to gravity (9.8067 m/s2) 20lb = 9.072 kg 9.072 x 9.8067 = 89 N Leigh
Exercising increases muscle sizes by exerting pressure on these muscles (but not too much mind). As a response the muscle tenses to allow the increase of weight being lifted (relating to the arms) for example to allow the body to develop as an adaptation tool used by our earlier ancestors to survive.
The amount of gravity something has is determined by its mass and how close it is to other objects exerting gravitational force. The more massive an object is, the more gravitational force it can exert, and the closer two objects are, the stronger the gravitational force between them.
A muscle contraction happens when too much force or stress is forced upon a muscle cavity. Dr. Whitmore PHD
When you lift a 50 pound dumbbell, you are exerting a force equal to the weight of the dumbbell, which is 50 pounds or approximately 222.4 Newtons. This force is required to overcome the gravitational pull on the dumbbell and lift it against gravity.
Strength is the definition word for "amount of force a muscle exerts.[shally]
The amount of gravity pulling on an object depends on its mass and the mass of the object exerting the gravitational force. The greater the mass of the object, the stronger the gravitational force it exerts. The force of gravity weakens with distance, following the inverse square law.