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Speed (m/s) Distance (m) Time (s)
Acceleration (m/s)2 change in velocity (m/s)
Curve=change in acceleration
Distance travelled=area between two intervals…read more

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Weight (N) Mass (Kg) G field strength (N/Kg)…read more

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Balances forces=no change in velocity
Steady speed=zero resultant force
Resultant force=acceleration
Resultant force = 0? Body remains stationary
Resultant force (N)
Vehicle-steady speed. Frictional forces balance
the driving force
Faster a body moves through fluid- greater
frictional force acts on it
Body falling through fluid- initially acceleration due
to force of gravity. Eventually resultant force =0.
body falls at its terminal velocity…read more

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Work done=energy transferred
Kinetic energy depends on mass
and speed
For an object to restore to its
original shape, elastic potential
energy is stored…read more

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Greater mass& velocity. More momentum it has.
Momentum (Kg m/s)
When a force acts on a body that is moving, or able to
move, change in momentum occurs.
Momentum before=momentum after when no external
forces act.
Forces cause a change in momentum:
Larger force=faster change in momentum(greater
Momentum changes very quickly, forces on body large,
likely to cause injury.
Longer for change in momentum=smaller the force.…read more

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