Recent content by botab

I need help with this problem where we are suppose to determine the fraction of kinetic energy lost by a neutron m=1.01u when it collides head-on and elastically with a target particle at rest which is. examples used.. Hydrogen = 1.01u heavy hydrogen = 2.01u How would you do this? Do...

Hello PF, I need some assistance with this problem. A curve of radius 61 is banked for a design speed of 89 . If the coefficient of static friction is 0.32 (wet pavement), at what range of speeds can a car safely make the curve? [Hint: Consider the direction of the friction force when the...

Hello PF, I need help with a physics question. A curve of radius 61 is banked for a design speed of 89 . If the coefficient of static friction is 0.32 (wet pavement), at what range of speeds can a car safely make the curve? [Hint: Consider the direction of the friction force when the...

we are solving tension, but its not the tension of the string with the weights on it. we are solving the tension of the pulley carrying the string& weight. I believe i sent an image on post#3. Does this change how the concept of how we are solving it?

ok thanks again ... I figured for 17.12N for tension ... and what I am now suppose to do now? Do I make basically sum up what I know that Fnet = mg-t? where mg is (3.2+1.2)(9.8) and Fnet is is (3.2+1.2)(4.45)?

Thank you for replying, but the thing is for this question i don't think the acceleration is needed.. because were trying to find C is attached to the wall and the pulley. Then I thought of Fnet = t-mg and since Fnet = ma which has no acceleration. So I figure it would be 4.4*9.8 but I was...

Hello PhysicsForums I need help with a certain question which has been bugging me for a while. a pulley is suspended by a cord with two masses attached. one mass is 1.2 kg. the second mass is 3.2 kg. the two masses are attached on different sides. the question: determine the tension in...