Tipping a crate friction physics problem

  • Thread starter Thread starter dharcha1
  • Start date Start date
  • Tags Tags
    Friction Physics
AI Thread Summary
To determine the force needed to tip a 1010 N crate by pulling at a 53-degree angle, the calculation involves balancing the torques. The counterclockwise torque generated by the pull must equal the clockwise torque due to the weight of the crate. The friction force must also be considered, as it prevents slipping, and the minimum coefficient of static friction can be calculated based on the forces involved. The discussion highlights the need for clarity in torque calculations and the importance of understanding the forces acting on the crate. Accurate calculations are essential for solving this physics problem effectively.
dharcha1
Messages
1
Reaction score
0
A worker wants to turn over a uniform 1010 N rectangular crate by pulling at 53.0 degrees on one of its vertical sides. The floor is rough enough to prevent the crate from slipping.
YF-11-49.jpg


1. What pull is needed to just start the crate to tip?
2. How hard does the floor push on the crate?
3. Find the friction force on the crate.
4. What is the minimum coefficient of static friction needed to prevent the crate from slipping on the floor?

1. torque = (F_pull)cos(270-53)(1.5m) = 1010 * 1.5 = 1515 N
the problem is getting started. i don't think i did this right.
 
Physics news on Phys.org
. torque = (F_pull)cos(270-53)(1.5m) = 1010 * 1.5 = 1515 N
This is the counterclockwise torque. What is the clockwise torque?
 
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 'Struggle to understand the concept of the 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 »

Similar threads

Maximum Acceleration of sliding crates
Replies
6
Views
2K
What is the acceleration of the crate?
Replies
12
Views
6K
What is the acceleration of the upper crate when the top crate begins to slide?
Replies
10
Views
4K
Finding the force to pull a block up a frictionless slope?
Replies
12
Views
2K
Work done by friction force on an object?
Replies
4
Views
5K
Solve for Crate Mass: Torque and Static Friction Problem | 40 kg Answer
Replies
3
Views
2K
Force to get a crate to overcome static friction
Replies
6
Views
3K
Acceleration with two wooden crates
Replies
4
Views
15K
Webpage title: Optimal Angle for Pulling a Crate with a Friction Rope
Replies
8
Views
4K
What Horizontal Force Tips a Crate with Given Friction and Mass?
Replies
1
Views
2K

Hot Threads

Recent Insights

Back
Top