help 5 simple questions

Question

1. Determine the Force of Gravity (Weight) of an object that has a mass of 6 kg
2. A Brick that weighs 14N sits on a desk. What is the Normal Force supplied by the desk?
3.  True or False: Normal Force is equal to the Weight of the object, but in the opposite direction
4. True or False: The Normal Force is Parallel to the surface the object rests on.
5. True or False: Weight is also known as the Force of Gravity

Answer 1

1. The weight equals to the mass times the acceleration of gravity (g=9.8 m/s²).
2. If brick is sitting on the desk horizontally, the normal force is equal to the weight of the brick (14N).
3. True only if the surface is in horizontal plane, otherwise it is False.
4. False.
5. True.

Answer 2

1) weight, w, is the gravitational force on the mass which is equal to the mass times g [9.8m/s^2], the acceleration due to gravity.

2) 14N up [Newton’s 3rd law]

3) can be true if object is on horizontal surface and no other forces are pushing it into or pulling it off the surface

4) False, normal force is perpendicular to the surface.

5) true