chaudhryfalak
contestada

A 15.0-lb block rests on the floor. (a) What force does
the floor exert on the block? (b) A rope is tied to the
block and is run vertically over a pulley. The other end
is attached to a free-hanging 10.0-lb object. What now
is the force exerted by the floor on the 15.0-lb block?
(c) If the 10.0-lb object in part (b) is replaced with a
20.0-lb object, what is the force exerted by the floor on
the 15.0-lb block?

Respuesta :

can u tell me the weight of the block?
weight of the block=w=mg=?
u know newtons third law of motion is.....
every action has an equal nd oposit reaction
weight of the block is action (force) on the floor
floor exerts force on the block is called reaction
action=reaction
so force by the floor on the block=w=mg=?

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