I found, the change of v is the answer to my conondrum. Applying formula W^2= (V^2)-2ar (the change of speed vertically we get the answer, thank you for your suggestions.
No, the answer can't contain the kinetic energy formula because they are asking for the normal force at point Q, having the kinetic energy formula on the answer then makes no sense.
As to how I got my answer, the formula upthere is the centripetal force minus the weight of the object which...
I concluded that ((mv^2)/r)-(mg) was equal to the normal force but the answer says its equal to ((mv^2)/r)-(2mg). Could someone explain why to me please?
"A half sphere of radius r is fixed to a horizontal floor. The inner surface is smooth. A small ball of mass m is at the bottom of the...
Ok, up to now I have concluded this must related to the amount of energy released in the process of the alpha decay as energy must be constant for any reaction. Knowing this I can use the mass of the resulting particles, the alpha and the daughter nucleaus, in order to find their velocity by...
I need some explanation to what I must know in order to solve the next problem. A step by step process and mention of the particular concept I must know would be greatly appreciated as I must learn how to do this by june 8.
" In the alpha decay of a Uranium-238 nucleus, what is the ratio v/V...