Recent content by srh

Homework Statement A 40-kg package is at rest on an inlcine when a force P is applied to it. Determine the magnitude of P if 4s is required for the package to travel 10 m up the incline. The static (us) and kinetic (uk) coefficients of friction between the package and the incline are 0.3 and...

Homework Statement (I have attached a picture of the circuit) Using node voltage analysis in the circuit, find the current i drawn from the independent voltage source. Let V=3V, R1=1/2, R2=1/2, R3=1/4, R4=1/2, R5=1/4, I=0.5. Homework Equations I=V/R The Attempt at a Solution I...

Homework Statement An empirical formula relating pressure and density for seawater w/ temperature constant is: p/pa = (k+1)(d/da)^7-k pa - pressure condition on the surface da - density condition on the surface k - dimensionless...

Homework Statement I have attached a picture of the situation. Small Wheels attached to the ends of rod AB roll along two surfaces. Knowing that at the instant shown the velocity vA of wheel A is 1.5 m/s to the right and the relative velocity vB/A of wheel B with respect to wheel A is...

Homework Statement I have attached a picture of the situation. Small Wheels attached to the ends of rod AB roll along two surfaces. Knowing that at the instant shown the velocity vA of wheel A is 1.5 m/s to the right and the relative velocity vB/A of wheel B with respect to wheel A is...

Homework Statement The acceleration of point A is defined by the relation a=-1.8sin(kt), where a and t are expressed in m/s^2 and seconds, respectively, and k=3 rad/s. Knowing that x=0 and v=0.6m/s when t=0, determine the velocity of point A when t=0.5s. Homework Equations a=dv/dt a dt...

Homework Statement I have attached a picture. Determine the friction force acting on the block shown when the angle is 30 degrees and P=200 N. Homework Equations us=0.3 (static friction) uk=0.2 (kinetic friction) The Attempt at a Solution I set up a free-body diagram w/the 1kN...