ashj15
Answered

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Please someone help me.
is the block of wood at rest or in motion?
refer to the figure below draw the forces acting on the block of wood use the gas as the origin of the forces.

thank you very much for answering this.​

Please Someone Help Meis The Block Of Wood At Rest Or In Motionrefer To The Figure Below Draw The Forces Acting On The Block Of Wood Use The Gas As The Origin O class=

Sagot :

semsee45

Answer:

1)  The block of wood is at rest.

2)  Weight and Normal Reaction (see attached diagram).

Explanation:

Assumptions

  • The block of wood is a particle (a body whose mass acts at a point, so its dimensions don't matter).
  • There are no other external forces involved.

Question 1

"At rest" or "resting" means that the object isn't moving.

Therefore, the block of wood is at rest.

Question 2

Forces that are acting on the block of wood:

  • Weight (W):  Due to the particle's mass, m, and the acceleration due to gravity, g:  W = mg
    (Weight always acts downwards).
  • Normal Reaction (R or N):  The reaction from a surface.
    (Normal Reaction is always at 90° to the surface).

See attached diagram.

View image semsee45
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