Calculating Speed Along Sides of Right Angle at Intersection with Ruler

AI Thread Summary
The discussion revolves around a physics problem involving a ruler moving perpendicularly to the bisector of a right angle at a speed of 10 cm/sec. Participants clarify that the bisectrix refers to the same concept as the bisector, with the term being gendered in mathematical terminology. There is confusion regarding the physical setup, particularly whether the right angle is aligned with the edges of the paper. The main focus is on understanding the relationship between the ruler's movement and the points of intersection along the sides of the angle. The conversation highlights the importance of visualizing the scenario to solve the problem effectively.
teddyayalew
Messages
35
Reaction score
0

Homework Statement


A right-angle is drawn on a sheet of paper. A ruler , which always remains perpendicular to the bisectrix of this angle moves over the paper with a speed 10cm/sec. The ends of the ruler intersect the sides of the angle. What are the speeds along the sides of the angle of their points of intersection with the ruler?


Homework Equations







The Attempt at a Solution


I'm not asking anyone to give me a solutions I am just having difficulty picturing the physical scenario described in the question
1) Am I right to assume it means a right angle with legs parallel to the sides of the paper?
2) I don't understand what bisectrix means if not bisector and if so then how is the ruler perpendicular to the bisectrix and what is the bisectrix?
 
Physics news on Phys.org
hi teddyayalew! :smile:

bisector and bisectrix are the same, bisectrix is the female version, and apparently lines are feminine!
 

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 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Similar threads

The speed of the point of intersection of two uniformly moving lines
Replies
24
Views
2K
What Is the Angular Speed of a Falling Ruler at 30 Degrees?
Replies
3
Views
4K
Man pulling a boat along the water with a rope (from above on a steep bank)
Replies
31
Views
2K
How Do You Calculate the Launch Angle for Intersection of Two Moving Objects?
Replies
2
Views
3K
Magnetic field experiment confusion with error calculations
Replies
8
Views
8K
Time of closest approach between two particles
Replies
42
Views
5K
A Falling Rod's Intersection Moving Faster Than Light?
Replies
2
Views
2K
Calculating Velocity Components and Angle between Cars at an Intersection
Replies
3
Views
10K
Calculate Height of Light Pole from Shadow Length
Replies
4
Views
2K
Error analysis: propagation of error
Replies
15
Views
4K

Hot Threads

Recent Insights

Back
Top