Calculate Weight Component on Inclined Plane

AI Thread Summary
To calculate the weight component acting parallel to an inclined plane at 30 degrees, the formula W*sin(θ) is used, where W represents the weight of the box. Given that sin(30) equals 0.5, the parallel component of the weight simplifies to 0.5W. The discussion highlights the confusion around the necessary formulas, but ultimately confirms that the answer is 0.5W. Understanding that W equals M*g is crucial for solving similar problems. This approach effectively clarifies the calculation process for inclined planes.
SLStudent
Messages
5
Reaction score
0

Homework Statement


the weight of a box on a plane inclined at 30 def is represented by the vector W. What is the magnitude of the component of the weight that acts parallel to the incline.
Answer is given in terms of W
possible anwsers .5W 1.5W .87W and W


Homework Equations





The Attempt at a Solution


M x g x sin(30)= 4.9
??
not sure what formula is needed to be used here
 
Physics news on Phys.org
W = mg. So
W*sinθ = ?
 
You don't know M, but you do know that W = M*g
so you have W*sin(30) = 0.5*W
 
wow i made it so much harder than what it needed to be thanks
 

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
View full post »

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
View full post »
Thread 'A bead-mass oscillatory system problem'

Thread 'A bead-mass oscillatory system problem'

I can't figure out how to find the velocity of the particle at 37 degrees. Basically the bead moves with velocity towards right let's call it v1. The particle moves with some velocity v2. In frame of the bead, the particle is performing circular motion. So v of particle wrt bead would be perpendicular to the string. But how would I find the velocity of particle in ground frame? I tried using vectors to figure it out and the angle is coming out to be extremely long. One equation is by work...
View full post »

Similar threads

Block on top of an inclined plane, with a rough surface, that moves with constant acceleration
Replies
41
Views
4K
Projectile motion on an inclined plane
Replies
7
Views
2K
Weight of an object in static equilibrium
Replies
12
Views
3K
Rope between inclines with maximum length of hanging middle portion
Replies
46
Views
3K
Block at rest on an inclined surface
Replies
36
Views
5K
Projectile launched from an inclined plane strikes a wall horizontally
Replies
7
Views
2K
3D Statics problem: Box on an inclined plane constrained by a rope
Replies
19
Views
2K
Question Concerning The Coefficient of Friction: Block on a Rough Inclined Plane
Replies
5
Views
2K
Acceleration on an inclined plane
Replies
3
Views
2K
Inertia and moving plane problem
Replies
7
Views
2K

Hot Threads

Recent Insights

Back
Top