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A man stands in a lift that is accelerating vertically downwards, as shown.

Which statement describes the force exerted by the man on the floor?

1 ) 

It is equal to the weight of the man.

2 ) 

It is greater than the force exerted by the floor on the man.

3 ) 

It is less than the force exerted by the floor on the man.

4 ) 

It is less than the weight of the man.

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