Recent content by chrispat

Ok so I took t=0 to be when the ball is at its highest point. 0.5m(vi)^2+mg(hi)=1/2m(vf)^2 (vi)^2+2gh=vf^2 Substituting for vi: [ks^2-2mgy/m]^2+2gh=vf^2

Homework Statement A child's toy consists of a block that attaches to a table with a suction cup, a spring connected to that block, a ball, and a launching ramp. The spring has a spring constant k, the ball has a mass m, and the ramp rises a height y above the table, the surface of which is...

Homework Statement A person of mass 60kg standing on a horizontal floor attempts to push a large wheeled crate of mass 800kg, which can roll on the same horizontal floor with coefficient of rolling friction equal to ur=0.03. What is the minimum coefficient of friction required between the...