Recent content by Q7heng

Shouldn't acceleration be 0 in this case because there is no friction on track?

Homework Statement This is a general problem, but if a 2kg object is given a push with a force of 20N, would one be able to calculate the velocity of the object if the surface is frictionless? Or does one need work and energy to find out the velocity? Homework Equations F=ma Work=F delta...

Homework Statement Hi, on my recent test there was a question stating 2 objects, one with a mass of m, and another with a mass of 4m, are pushed with equal forces on a frictionless track. The question asked which object will reach the end first and I said they will reach at the same time...

Thanks!

F=Fk+Fspring right? If that is so then: F=MA, A=0, and F=0 So 0=Fk+Fspring 0=-kx+μkN kx=μkN k/μk=N/x, since we are trying to find the ratio between the spring constant and the kinetic friction coefficient Since N, normal force, is 36*9.8N right now, and x, distance, is 3.4cm or 0.034m right now...

Is the lifting force just equal to the weight?

Homework Statement Flying aircraft X is designed in 2014. The current model has a top speed of 812 m/s, a mass of 72,000 kg when fully loaded, and a maximum thrust to weight ratio of 0.44. Calculate the lifting force and the drag coefficient for the Quinjet when it is flying level at top speed...

Acceleration=0 at steady speed, but the trouble I'm having is converting everything to Newtons, since spring constant is Newtons/meter, and kinetic friction coefficient is Force of Kinetic Friction/Normal Force. The problem didn't give any units related to those calculations, maybe there is a...

I'm not sure, but I tried to apply it to the F=MA formula... Am I on track?

Homework Statement A person attaches a spring to an cubic object that weighs 36kg and pulls this object along a table made of material X horizontally with a steady speed of 1.3m/s. The spring stretches a distance of 3.4cm. Find the ratio of the spring constant to the kinetic friction...