What is the principal square root of the square of a number?
2 blocks of masses m1 and m2 are joined by a light spring on a horizontal table. Obtain the relation of their accelerations a1 and a2 after they separate a bit and get released. I tried to use the equations V(x)= .5k*x^2 (potential energy) and V = -∫Fdx I set -∫Fdx...
A disk rotates on the horizontal. A blcok is hanging from the tisc, which forms an angle with the vertical of 45 degrees while the disk turns. The radius of the disc is .1mm and the length of the string is .06 m. Determine the velocity of rotation for the system.