A frictionless incline with a block sliding down it....

Click For Summary
The discussion revolves around a physics problem involving a block sliding down a frictionless incline. Participants are tasked with creating a free-body diagram and identifying forces acting on the block, including the normal force and gravitational force. The problem emphasizes the need for a non-numerical solution, allowing for the application of specific values later. Clarification is provided that the lack of numerical data is intentional and typical for such problems. Overall, the focus is on understanding the forces and their relationships in the context of the incline scenario.
Ella1777
Messages
15
Reaction score
0
Member advised to use the formatting template for all homework help requests
A frictionless incline (the triangle below) is bolted to the floor so that it can not move. A block of mass m slides down the slope, which makes an angle
theta.gif
with the horizontal.a)Draw a free-body diagram for the block, labeling all forces uniquely.

b)Describe all the forces listed above in the following format:F1 acts on ________________ and is caused by _________________ .c)What is the magnitude of the normal force acting on the block?d)What is the magnitude of the acceleration of the block down the slope?Here is my problem the first part I'm sure I'm right since it was just a free body diagram.
The only information given was a right triangle and a block inclined on it. The problem is nothing else was given except for a theta | \
----- theta is at bottom right corner.

That is all that was given I don't see how in the world I can solve these with such little information unless they're just asking for the formula please help asap!
Thank you!
 

Attachments

  • theta.gif
    theta.gif
    64 bytes · Views: 1,023
Last edited by a moderator:
Physics news on Phys.org
They are asking for a non-numerical solution. One that you could plug numbers into if you had specifics. This is a perfectly reasonable type of problem.
 
phinds said:
They are asking for a non-numerical solution. One that you could plug numbers into if you had specifics. This is a perfectly reasonable type of problem.
Thank you thank you! I was not sure.
 

Thread 'Magnitude of buoyant force in fluids of different densities'

The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?
View full post »

Similar threads

Block on an accelerating wedge (part c only)
  • · Replies 12 ·
Replies
12
Views
2K
A-level Maths Mechanics: Prevent Block from Sliding Down Inclined Plane
  • · Replies 30 ·
2
Replies
30
Views
3K
Newton's laws — Two stacked blocks sliding on a frictionless floor
  • · Replies 17 ·
Replies
17
Views
3K
Finding the work done by a block
  • · Replies 4 ·
Replies
4
Views
3K
Block on top of an inclined plane, with a rough surface, that moves with constant acceleration
  • · Replies 41 ·
2
Replies
41
Views
4K
Block tied to a fixed string on an accelerating wedge
  • · Replies 37 ·
2
Replies
37
Views
2K
Physics Homework -- block pressed against a wall is sliding....
  • · Replies 4 ·
Replies
4
Views
3K
Force pulling on a string at an angle with a block at the other end
  • · Replies 2 ·
Replies
2
Views
1K
Calculating acceleration of a prism and block connected to a wall through a rope and pulley
  • · Replies 4 ·
Replies
4
Views
821
Normal force acting on a block on an accelerating wedge
  • · Replies 12 ·
Replies
12
Views
3K