Train Acceleration Calculation: Spider on a Web Scenario

  • Thread starter Thread starter muktl
  • Start date Start date
  • Tags Tags
    Thanks
AI Thread Summary
To calculate the train's acceleration in the scenario where a spider hanging from a web moves 10 degrees as the train accelerates, one should start by drawing a free body diagram of the spider. The forces acting on the spider include its weight and the tension in the web. Applying Newton's laws, particularly the principles of pendulum motion, will help in determining the relationship between the angle of displacement and the acceleration of the train. The key is to analyze the forces and their components to derive the acceleration. Understanding these concepts will provide a general approach to solving the problem.
muktl
Messages
6
Reaction score
0

Homework Statement



if given a scenario for example, a spider is hanging down from a thread of spider web on a train, and when the train moves the spider moved 10 dregees
how to find the acceleration for the train? pretend X is the weight of the spider

if you don't understand the question msg back and i can explain better, i just need a general idea of how to do it

Homework Equations





The Attempt at a Solution

 
Physics news on Phys.org
Draw a free body diagram of the spider and note all forces acting on the spider (its weight is one of them, what's the other(s))? Then apply Newton's laws.
 
Last edited:
The spider is acting like a pendulum ;)
 
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 »

Thread 'Egg Drop Challenge! Need ideas for winning designs'

I was thinking using 2 purple mattress samples, and taping them together, I do want other ideas though, the main guidelines are; Must have a volume LESS than 1600 cubic centimeters, and CAN'T exceed 25 cm in ANY direction. Must be LESS than 1 kg. NO parachutes. NO glue or Tape can touch the egg. MUST be able to take egg out in less than 1 minute. Grade A large eggs will be used.
View full post »

Similar threads

Calculating Tension with a Centered Object
Replies
6
Views
7K
Calculating Electrostatic Force on a Suspended Gossamer Spider
Replies
7
Views
2K
Average Speed Question for a Train that Accelerates and then Decelerates
Replies
20
Views
2K
Can a Spider's Acceleration on a Spider Web Be Supported by its Tension?
Replies
1
Views
2K
Calculating Tension in a Spider's Web: A Simple Forces Problem
Replies
16
Views
2K
Pendulum hung from the ceiling of a train
Replies
18
Views
3K
1-D Kinematics: Trains and a bird
Replies
20
Views
3K
How Does Friction Affect Train Acceleration?
Replies
1
Views
3K
Calculating Time Difference and Length Contraction in Train Overtaking Scenario
Replies
11
Views
3K
Distance between train and its carriage
Replies
6
Views
2K

Hot Threads

Recent Insights

Back
Top