Recent content by bertoline

i solved it. answer: 60kg.

Homework Statement At the base of a frictionless icy hill that rises at 29.0deg above the horizontal, a toboggan has a speed of 12.0 m/s toward the hill. How high vertically above the base will it go before stopping? Homework Equations Wtot=K2-K1 K=1/2mv^2 K2=1/2mv^2=K1+Wtot The...

my FBD has Fn opposite W on the Y axis. then at 28 deg from vertical i have Ft from the string-ceiling bus accompanied by Fc in opposite direction. is that all so far? i have tried getting components to sum the forces, but have had no luck getting anywhere.

Homework Statement A woman rides on a Ferris wheel of radius 16 m that maintains the same speed throughout its motion. To better understand physics, she takes along a digital bathroom scale (with memory) and sits on it. When she gets off the ride, she uploads the scale readings to a computer...

centripetal acceleration. i gave the formula for that. the lunch box doesn't have friction. it has a force tension in the string. am i correct in saying that? to be honest, i haven't a clue where to start.

acceleration around the curve, or frictional force?

hahah thanks What is the speed v of the bus? Take the free fall acceleration to be g = 9.80 m/s^2.

[SOLVED] Newton's Law Flat Curve Homework Statement You are riding in a school bus. As the bus rounds a flat curve at constant speed, a lunch box with a mass of 0.470 kg suspended from the ceiling of the bus by a string of length 1.88 m is found to hang at rest relative to the bus when the...