What are the Dynamics of Friction in a Mass on a Level Surface?

Thread starter dwalker19
Start date Feb 26, 2011
Tags

Dynamics Friction

AI Thread Summary

The discussion focuses on calculating various dynamics of a 10.0 kg mass on a level surface when a 20.0 N force is applied at an angle of 18.0 degrees. Key calculations include determining the weight of the mass, the components of the applied force, the normal force, the net force, and the coefficient of static friction. The mass accelerates at 0.65 m/s², which is critical for calculating the net force and frictional forces involved. Participants are encouraged to show their work for better assistance. Understanding these dynamics is essential for solving related physics problems effectively.

Feb 26, 2011

dwalker19

Homework Statement

Given the description of a mass of 10.0 kg is n a level surface, when a force of 20.0 N is applied at 18.0 degrees to the horizontal, the mass accelerates at 0.65 m/s/s. Calculate:

a) Weight
b) Components of applied force
c) Normal force
d) Net force
e) Coefficent of static friction

Physics news on Phys.org

Feb 27, 2011

supratim1

Gold Member

show your work if you want to be helped.

Thread 'I've come across another fluid pressure problem I don't understand'

Neglect gravity other than that of water; neglect friction. F1=ρgsh=1000*10*1*(1+4)=50000 N; F1=ρgsh=1000*10*0.1*4=4000 N; F3=50000-4000=46000 N?

View full post »

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 'Understanding Forces and their Vector Components'

I was told forces are vectors so they can be divided into x and y components, but what about the normal force or the force of static friction? do you divide those into x and y components if say you had a block that was lying on an angled surface?

View full post »