When a body is placed on a table top, it exerts a force equal to its weight downwards on the table top but does not move or fall.
$(i)$ Name the force exerted by the table top.
$(i i)$ What is the direction of the force?

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Solution

$(i)$ Normal reaction force.
$(i i)$ It acts normal to the surface of table top ie., opposite to the direction of the force due to the weight of the body.

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When a body is placed on a table top, it exerts a force equal to its weight downwards on the table top but does not move or fall.(i) Name the force exerted by the table top.(ii) What is the direction of the force?

(i) Normal reaction force.(ii) It acts normal to the surface of table top ie., opposite to the direction of the force due to the weight of the body.

When a body is placed on a table top, it exerts a force equal to its weight downwards on the table top but does not move or fall.
$(i)$ Name the force exerted by the table top.
$(i i)$ What is the direction of the force?

$(i)$ Normal reaction force.
$(i i)$ It acts normal to the surface of table top ie., opposite to the direction of the force due to the weight of the body.