Recent content by mldavis086

That's great. Thanks!

Homework Statement An object with a mass of m = 5.10 kg is attached to the free end of a light string wrapped around a reel of radius R = 0.250 m and mass M = 3.00 kg. The reel is a solid disk, free to rotate in a vertical plane about the horizontal axis passing through its center. The...

No it is not all the given info. It was a power question but I got it figured out. I was just confused about the part where it could be any speed. But now it seems like a silly question now that I understand. Thanks though!

Homework Statement 2 equal masses (massA, massB) are raised up a pulley, at a constant velocity. massB has a velocity twice as fast as massA. What is the force acting on these 2 masses? Homework Equations The Attempt at a Solution If it is a constant velocity, the upwards force...

Homework Statement When a 4.00-kg object is hung vertically on a certain light spring that obeys Hooke’s law, the spring stretches 2.50 cm. If the 4.00-kg object is removed, (a) how far will the spring stretch if a 1.50-kg block is hung on it? (b) How much work must an external agent do to...

I think I get it. The 2 forces are the force towards the center, and the force of gravity straight down. If I calculate the 'resultant' of these 2 vectors. I get a force of 2.2N up and 6.13N left. Then using Pythagoreans Theorem. The magnitude of the resulting vector is 6.51N. Can anyone out...

Wait the centripetal acceleration is a force too right? 8N towards the center of the circle.

Or is it just mg=2.94N? I am confused with the term 'resultant force' I think

The only force acting on it is gravity right? Does that make the 'resultant force' the 2.25N opposite of it's direction at the moment?

Homework Statement A 0.30-kg mass attached to the end of a string swings in a vertical circle (R = 1.6 m), as shown. At an instant when θ = 50°, the tension in the string is 8.0 N. What is the magnitude of the resultant force on the mass at this instant...