Recent content by hippolyta2078795

Homework Statement An object, a sphere or cylinder, is rolling down an incline and also slipping. How do you find the translational and angular speed? Does slipping decrease or increase the translational and rotational speeds? How so? Homework Equations The Attempt at a Solution

x(t)=117.3cos(a)t y(t)=6.167 + 117.3sin(a)t -16t^2 Distance is in feet. Time is in seconds. I've tried to eliminate variables but I have only yielded new variables.

I mean that it is not ideal because it does not start at the origin.

still stuck. How do I combine them. It is not ideal parabolic motion because it doesn't start at the origin.

George Washington, first President of the United States of America, is purported to have thrown a silver dollar across the Potomac River from the lawn of his home in Mt. Vernon...The Potomac is approximately 5280ft across at that point. Washington was 6foot2 and threw the coin at an initial...

What are those things. I don't know how to find the magnitude of a field with an unknown radius. Thanks.

Yeah. Just set y=0 and solve from there. Use y=y0 + V0T + (1/2)aT^2. Solve for T. I think you're forgetting some information in the other problem.

A proton(m=1.67 * 10^-27 kg) is suspended at rest in a uniform electric field E. Take into account gravity and determine E. How do I find the field if I don't know what r is. A spacecraft makes a trip from the Earth to the Moon, 380000km away. At what point in the trip will the...

I was mistaken. I do not know the mass.

I just figured it out. Just need to substitute properly.

A bowling ball ( I = 2/5 M ^R2 ) encounters a 0.8 m vertical rise on the way back to the ball rack. If the ball rolls without slipping with a center of mass translational velocity of 4.0 m/s at the bottom of the rise. How do I find the rotational kinetic energy of the ball at the top or bottom...

I have a problem involving a hand crank, an axle, and a bucket. The crank turns the axle. The axle lowers the bucket. When someone spins a hand crank, the angular velocity of the hand crank and the axle are the same right? I think it and they seem to be the same. The velocity of the...