So would it be the gravitational potential energy between A and C plus the GPE of A and B and add them? and set that = to F(theta)? because in the picture, there is no C
Homework Statement
One dimension. In Fig. 13-33, two point particles are fixed on an x-axis separated by distance d. Particle A has mass mA and particle B has mass 7.00 mA. A third particle C, of mass 75.0 mA, is to be placed on the x-axis and near particles A and B. In terms of distance d, at...
Homework Statement
A ball of mass m = 56 g is shot with speed vi = 20 m/s (in the negative direction of an x axis) into the barrel of a spring gun of mass M = 222 g initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring...
Homework Statement
The string in Fig. 8-37 is L = 129 cm long, has a ball attached to one end, and is fixed at its other end. The distance d from the fixed end to a fixed peg at point P is 78 cm. When the initially stationary ball is released with the string horizontal as shown, it will swing...
Homework Statement
The figure shows three forces applied to a trunk that moves leftward by 2.8 m over a frictionless floor. The force magnitudes are F1 = 5.5 N, F2 = 8.7 N, and F3 = 2.6 N, and the indicated angle is θ = 60°. (a) During the displacement, what is the net work done on the trunk...
after doing the cross product for d1xd2, i got -160i -24j -200k. After that, i multiplied by the sum i got for the d1+d2 section. So in the end, i multiplied -160 times 13, -24 times -20, and -200 times 8. Then i had -2080 + 480 - 1600