Forces involving a pulley sysem.

  • Thread starter Thread starter grouchy
  • Start date Start date
  • Tags Tags
    Forces Pulley
AI Thread Summary
A block of mass 1.05127 kg on a frictionless table is connected by a string to a mass of 3.94644 kg, influenced by Earth's gravity of 9.8 m/s^2. The net external force acting on the system is calculated to be 38.6751 N, which is confirmed as correct. The acceleration of the two masses is determined to be 7.73857 m/s^2, also verified as correct. The tension in the rope between the masses can be calculated using the formula T = m(1)a, clarifying the confusion regarding the magnitude. Understanding these forces is crucial for analyzing pulley systems in physics.
grouchy
Messages
72
Reaction score
0
A block of mass 1.05127 kg lies on a frictionless table, pulled by another mass 3.94644 kg under the influence of Earth's gravity. The acceleration of gravity is 9.8 m/s^2.

a) What is the magnitude of the net external force F acting on the two mass system connected by the string? got this to be 38.6751 N and its correct

b) Magnitude of the acceleration of the two masses? I got it to be 7.73857 and its correct.

c) Magnitude of the tension of the rope between the two masses?

Not really sure what c) wants...the magnitude part throws me off.
 
Last edited:
Physics news on Phys.org
lol, nvm got it. T=m(1)a :)
 

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

Newton's Second Law (Pulley Sustem)
Replies
3
Views
2K
Olympiad dynamics problem with 3 masses and a pulley
Replies
17
Views
2K
Analyzing acceleration of block on a ramp connected to a pulley
Replies
15
Views
2K
Problem with pulleys - two fixed and one movable
Replies
22
Views
372
Calculating acceleration of a prism and block connected to a wall through a rope and pulley
Replies
4
Views
390
Tension in a complex-pulley-system
Replies
27
Views
2K
Falling mass, additionally accelerated by a rope
Replies
18
Views
1K
Distribution of Energy when work is done on a system of 2 masses connected by a spring
Replies
17
Views
2K
Pulley with friction, how to get the friction in the pulley?
Replies
23
Views
2K
Ideal Vs Real Mass Pulley system
Replies
10
Views
5K

Hot Threads

Recent Insights

Back
Top