Recent content by twerkit

Homework Statement Part 1: Three objects, a solid cylinder, solid sphere, and a hoop all have equal radii and mass. They all roll down the same incline. Which of the following statements is true about the kinetic energy K of the of the objects after they have rolled down the incline and...

Have you learned about Impulse yet (change in momentum)? What is force a product of? What's given to you in this problem? Focus on the baby rather than the car's collision, you aren't given any information about the object that the car collides with.

Thank you for the eye opener :-)

Ah, I thought you were asking me as if you needed more information! So since two cables are supporting the truck, I divide my answer by two and get approximately 178 kg.

I don't know, the question is literally this : "Find the mass necessary for the truck to be balanced on the slope in the figure. Assume that the mass and frictions of the pulleys are negligible." That is all it says, no information regarding how many cables or the like is given.

Homework Statement Find the mass necessary for equilibrium to occur in the following image. Assume that the mass and the friction of the pulleys are negligible. Homework Equations None directly provided for this problem. The Attempt at a Solution I figured for this problem I...