Recent content by Sny

A mass of 0.39 kg connected to a light spring with a spring constant of 22.2 N/m oscillates on a frictionless horizontal surface. If the spring is compressed 4.0 cm and released from rest, determine the following. (a) the maximum speed of the mass (b) the speed of the mass when the spring...

Normal force = mgcos (theta). (5kg)(9.8N)(cos 30) = 42.435 Force of friction = (42.435)(.436) = 18.502 Work = (Friction)(distance) = (18.502)(2.1) = 38.85 So, where'd I go wrong?

Doing some midterm review and I got stuck on this question. Starting from rest, a 5.0 kg block slides 2.1 m down a rough 30.0° incline. The coefficent of kinetic friction between the block and the incline is µk = 0.436. Determine the work done by the friction force between block and incline...

Yes, because my calculator's telling me otherwise :eek:

An object weighing 315 N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 260 N. Immersed in oil, the object weighs 275 N. Find the density of the object in kg/m3. I found the mass of the object to be 32.142857kg and the apparent mass when...