Recent content by Stormblessed

And to find the velocity of the platform when the car started to move, would the equation Ptotal = m1v1 + m2v2 be used (with Ptotal being 0)?

Since the system is isolated and initially at rest, would it mean that, according to Conservation of Momentum, that the momentum of the system after the car starts to move is 0?

Force of gravity and normal force which cancel out. Is there an applied force from the car, or are there no unbalanced forces on the platform?

Homework Statement A car of mass 1500 kg is at rest on a platform of mass 3000 kg, which is also at rest. The platform has frictionless wheels attached to its bottom. The whole system is initially at rest. The car starts to move forward at a speed of 5.0 m/s with respect to the ground...

The force was not measured in Newtons, instead it was the number of small masses (washers) that were attached to the bottom of the rope (which I assume is supposed to emulate centripetal force). Also, is my idea about the slope of the radius vs period^2 graph correct (represents acceleration)?

So the slope of the force vs frequency^2 graph is equal to m(4pi^2)(R)?

Homework Statement An experiment that involved swinging a mass in a circle was conducted. After graphing both sets of data, I obtained linear graphs of which I calculated the slopes for. I got a slope of 3.5 for the force vs frequency^2 graph and a slope of 0.73 for the radius vs period^2...

Ok, this works (t = 35.5). Thanks a lot. So does this apply (d1 + d2 = dtotal) for all "two cars driving toward each other" questions?

Oh, so can the equation be written as: 0.6t^2 + 18 t = 1400 And then I just solve for t?

Homework Statement Two cars are 1.4 km apart and driving towards each other. One car starts from rest and accelerates uniformly at 1.2 m/s^2. The other car is driving at a constant speed of 18 m/s. When will the cars meet? Homework Equations d=vt d=ut + 1/2at^2 d=vt-1/2at^2 v^2 = u^2 + 2ad...

I'm assuming that it will go through the origin, as the wire cannot vibrate without tension

So that means the curve does pass through the origin then?

Is the restoring force zero since Is the restoring force zero, since tension is zero? How would that relate to the curve going through the origin or not?

Homework Statement After plotting a graph with frequency (f) of a wire on the y-axis and tension (C-Clamps) on the x-axis, a root curve was obtained. If the trend of the line is maintained, does it pass through the origin? Should it? Note: graph attached Homework Equations f is proportional...

I came up with this: The cross sectional area of a beam does have an effect on the vertical depression at a given extension, as if you increase the dimensions of the beam, and therefore its thickness and cross-sectional area increase as well, then the amount of depression will vary based on the...