Recent content by Diff.Ed

Homework Statement Two springs each of natural length a and spring constant C are connected at one end (see figure). Consider a two dimensional displacement given by (x, y) (a) Write the potential energy as a function of x and y. (b) Find the force vector for a given (x, y) pair...

Homework Statement The potential energy of two neutral molecules may be modeled using the Lennard Jones potential, U(x)=U_0(\frac{\sigma^{12}}{x^{12}} - \frac{\sigma^6}{x^6}) where U_0 and \sigma are positive constants and x is the distance between the two molecules. a) Find the force at...

Homework Statement A projectile is to be launched so as to go from A to B [which are respectively at the bases of a double inclined plane having angles \alpha and \beta as seen in the figure] and just barely miss a pole of height H that is located at the tip. If the distance between A and B is...

Homework Statement Two blocks both of mass m are placed on an inclined plane making an angle \theta with the ground. The two masses are connected with a spring of spring constant k. The coefficient of kinetic friction is \mu _k for both blocks. Assume that the spring is initially stretched...

Hi everyone ! My name is Sean. I'm a new member of this forum. I couldn't do any attempts for this problem. Actually, i did many attemps but they went wrong. Homework Statement How can i solve this problem ? Your friend is late for school and is running with a speed of v_f up a hill which...