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If a motionless object has a weight of 25 N, what is true of the normal force acting on the object? A. It is 25 N and acts in the same direction as the weight. B. It is 25 N and acts in the opposite direction to the weight. C. It is less than 25 N and acts in the opposite direction to the weight. D. It is more than 25 N and acts in the opposite direction to the weight.

Respuesta :

B. normal contact force acts in the opposite direction as of weight, hence A is out. C is out as if normal contact force is lesser than the weight, the object would be sinking into the ground due to net force of the weight. D is out as if normal contact force is greater than the weight, the object would be flying upwards.

Answer:

B is an answer.

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