Geography 1400F/G Chapter Notes - Chapter 4: Junkers J.I

a force P pulls on a crate of mass (m) that is in contact with arough surface. W represents the weight of the crate. FN representsthe normal force on the crate, and f represents the frictionalforce.

P= 160 N
f= 80 N
w= 196 N
60 degree angle

a) calculate the net force on the crate in the horizontalarea

B) what is the accerelation of the crate along the surface?

a force P pulls on a crate of mass (m) that is in contact with arough surface. W represents the weight of the crate. FN representsthe normal force on the crate, and f represents the frictionalforce.

P= 160 N
f= 80 N
w= 196 N
60 degree angle

a) calculate the net force on the crate in the horizontalarea

B) what is the accerelation of the crate along the surface?

c)what is the normal force of the surface of the crate?

δ=1000kg/m^3
h=r=λ=5.0*10^-7
Power=1.0w
S=Power*A=1.0/4π(5*10^-7)^2=3.18*10^11
Pressure=S/c=(3.18*10^11)/(3.0*10^8)=1060
mass=ρ*volume=1000*(π(5*10^-7)^3)=3.93*10^-16
F=P*A=1060(4*π*(5.0*10^-7)^3))=3.0*10^-9
F=m*a
a=F/m=(3.0*10^-9)/(3.93*10^-16)=8.6*10^6