Find the Force on a Resting Block at a 15 Degree Angle | Physics Board Question

In summary, the conversation discusses a problem involving a block resting on an angled board and the force acting on the block. The question asks for either a numeric or symbolic answer and requires knowledge of the given quantities. A suggestion is given to use the tangent of 15 degrees, but it is deemed incorrect. The force normal is mentioned, but the weight of the board is not given, making the question somewhat unclear. It is also speculated that the question may be a trick. A link is provided for further explanation on finding the components of force on a ramp. Ultimately, it is determined that the total force on the block is zero since it is not accelerating.
  • #1
HaZzArD 09
6
0
Can't remember how the question is exactly asked but its something like this. A block is resting on a board and the board is at an angle of 15 degrees with the horizontal. What is the force on the block?
 
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  • #2
Does the problem want a numeric answer or a symbolic answer? What are the given quantities? Those kinds of things you need to know before you can answer the question properly.
 
  • #3
Numeric
I was told to just do the tangent of 15 degrees but idt that's right..
 
  • #4
Yeah there looking for force normal I believe but the question doesn't give a weight of the board... so this doesn't make sense.
 
  • #5
Pardon me, but could it be one of those trick questions?
The block is "resting" suggests it is not accelerating. Therefore the total force on it is zero.

There is quite an explanation of how to find the components of the force of gravity on a ramp here: http://www.physics247.com/physics-homework-help/slope.php
 

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