Biomechanics - applications of force

Which picture shows muscular force is greater than air resistance?

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Which picture shows a runner moving at a constant pace?

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The force that attracts a body towards the centre of the earth

• Gravity

• Air resistance

• Ground reaction force

• Muscular force

The frictional force that air applies against a moving object

• Gravity

• Air resistance

• Ground reaction force

• Muscular force

The reaction to the force that the body exerts on the ground

• Gravity

• Air resistance

• Ground reaction force

• Muscular force

A push or pull to an object, provided by muscular contraction

• Gravity

• Air resistance

• Ground reaction force

• Muscular force

The force acted upon an object at the moment of release

• Muscular force

• Air resistance

• Ground reaction force

• Force applied at release

The resistance to motion of one object moving relative to another

• Friction

• Air resistance

• Ground reaction force

• Force applied at release

As the cyclist fatigues, muscular force decreases causing a force imbalance - air resistance exceeds muscular force. Which picture shows this?

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Which force/s need to be great enough to overcome gravity in a sprint start?

• muscular force

• ground reaction force

• air resistance

• reaction time