Answer Happy

The table below lists four uniform objects, each with mass M = 6,9 kg. Object 3 is selected and rolled without slipping across a horizontal surface. It encounters and rolls up a ramp inclined at 45° from horizontal. Find the magnitude of the friction force required to make the object roll without slipping up the ramp. [Hint: The object's radius cancels, so it isn't needed to solve the problem.] Number Object solid cylinder thin hoop solid sphere hollow sphere 1 2 3 4 4 f= N Report your numerical answer below, assuming three significant figures. Remember to include a ""when necessary You Answered 19.126 Correct Answer 13.6613 margin of error +/- 1%