Recent content by divineyang

Homework Statement A dog of mass m is standing on the edge of a stationary horizontal turntable of totational inertia I and radius R. The dog walks once around the circumference of the turntable. What fraction of a full circle does the dog's motion make with respect to the ground? Express...

oh there arent any initial conditions haha. i understand now, thanks so much!

i want to find the extension, x of a spring with spring constant k with a mass of m hanging on its end.. Express x in terms of k, m and g. I want to know why its possible to derive an expression for x by using energy.

so I cannot use the energy conservation approach to find the displacement of the mass? other than equilibrium of forces, how else can I find the value of x?

Homework Statement Scenario: A block of mass m hanging on the end of a vertical spring with spring constant k Homework Equations When the spring has come to rest: Vertical eqm: weight = force exerted by spring mg = kx Energy conservation: loss in GPE =...

is it correct to equate the force to the kinetic energy of the object? shouldn't you relate the potential energy stored in the spring to the kinetic energy of the object instead?

oh i got the angle already, I was just confused as to whether there were any more forces acting on it. thanks for the clarification!

Homework Statement Please refer to the attachment.Homework Equations Sum of x and y forces = zero Sum of moments about any point = zeroThe Attempt at a Solution By looking at the portion of the string under the crate, there are 3 forces acting on it, namely the two tensions at the side and the...