Recent content by orange03

A 75 kg climber finds himself dangling over the edge of an ice cliff, as shown in the figure below. Fortunately, he's roped to a 980 kg rock located 51 m from the edge of the cliff. Assume that the coefficient of kinetic friction between rock and ice is 5.5×10−2. What is his acceleration, and...

Okay, I got it now. Thank you!

okay i got w=.20 but I don't know how to convert that to RPM. Wouldn't the units on w by 1/s^2? Is there a formula or conversion factor to get it to RPM?

F=mrw^2?

would it just be N=mg?

Yeah, it's the force that is the same direction as acceleration, towards the center.

A space station is in the shape of a hollow ring, 450 m in diameter. At how many revolutions per minute should it rotate in order to simulate Earth's gravity-that is, so that the normal force on an astronaut at the outer edge would be the astronaut's weight on Earth? All I got so far was...

How do you convert radians to meters?? Is it even possible?

Homework Statement A 75 kg climber finds himself dangling over the edge of an ice cliff, as shown in the figure below. Fortunately, he's roped to a 980 kg rock located 51 m from the edge of the cliff. Assume that the coefficient of kinetic friction between rock and ice is 5.5×10−2. What is...

Homework Statement A police officer investigating an accident estimates from the damage done that a moving car hit a stationary car at 24 km/h. If the moving car left skid marks 47 m long, and if the coefficient of kinetic friction is 0.68, what was the initial speed of the moving car? (The...

Okay, thank you! I will try to work this out. I don't have the answers bc the homework is online.

would f=190 rev/min? and how would i find centripetal acceleration? I think I got confused because the only factor I was missing was velocity so I just made 19.89 rad/sec into velocity but I think it's angular velocity.

Homework Statement A bug crawls outward from the center of a compact disc spinning at 190 revolutions per minute. The coefficient of static friction between the bug's sticky feet and the disc surface is 1.4. How far does the bug get from the center before slipping? Homework Equations...