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Newton's three laws
Newton's 1st Law
`If an object has no resultant force acting on it, the object will continue to move at a constant speed in
the same direction or will stay stationary'.
A car moving at 50mph.
Newton's first law applies to the Bugatti Veyron because it is travelling at a constant speed of
50mph. The arrows show that the forces, forward thrust and friction are equal.
Newton's 2nd Law
`If a resultant force is applied to an object:
The speed of the object may change
The object may change direction'
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Beyoncé is being pushed on a swing by her husband, Jay-Z. Newton's second law applies here
because all the forces on the swing were balanced when she was stationary. When Jay-Z applied a
resultant force to the swing this caused it to move/speed up.
Newton's 3rd Law
`Every action has an equal and opposite reaction'
Newton's third law applies to this rocket.
The burning fuel in the rocket is forced downwards meaning it exerts an equal but opposite force
onto the rocket.…read more