Recent content by Cassie

The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 12 g nail when it is struck by a 550 g hammer moving with an initial speed of 5.0 m/s. I thought I tried every combination of (1/2)(m+M)V^2 ... apparently except...

An ice cube is placed in a microwave oven. Suppose the oven delivers 104 W of power to the ice cube and that it takes 32165 J to melt it. How long does it take for the ice cube to melt? Following my lecture notes and my textbook ... the formula should be t=(J/W), but that isn't giving me...

I contacted my TA about the problem. The formula was simply V^2 / 2*g*coef=s Thank you for all your help!

I did list them. Normal force and weight in the y-direction, and friction force in the x-direction.

I am not given mass. Just initial speed and the kinetic friction coefficient.

edit: scratch this. posted it too soon.

Yes I am, but I don't understand how I would use that formula.

No, I don't think so. Its possible that I just might not recognize it though.

Sadly, I tend to over complicate and over analyze my physics work. There is the normal force and weight as well as the frictional force.

I have drawn the free body diagram, but my professor was very vague on most of this chapter. I am confused how to solve for acceleration or time using kinematics without one or the other. I am sure there is some connection I am failing to make.

I would really appreciate it if anyone could help me with this problem. A baseball player slides into third base with an initial speed of 8.50 m/s. If the coefficient of kinetic friction between the player and the ground is 0.44, how far does the player slide before coming to rest? I'm not...