Winching a Rod

A rod of mass M M and length L L has one end hinged at the origin in the x y xy plane. Its other end is connected to a cable, which is connected to a winch at ( x , y ) = ( W x , W y ) (x,y) = (W_x,W_y) . The winch keeps a constant tension T T on the cable, and the length of extended cable varies as the rod moves.

At time t = 0 t = 0 , the rod is horizontal, stationary, and pointed in the + x +x direction. At what time is the rod colinear with the origin and the winch? If the answer is t f t_f , give your result as 1000 t f \lfloor 1000 \, t_f \, \rfloor .

Details and Assumptions:
- \lfloor \, \cdot \, \rfloor denotes the floor function
- There is no gravity
- M = 10 kg M = 10 \, \text{kg}
- L = 2 m L = 2 \, \text{m}
- T = 5 N T = 5 \, \text{N}
- ( W x , W y ) = ( 3 m , 2 m ) (W_x , W_y) = (3 \, \text{m}, 2 \, \text{m})


The answer is 1409.

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

0 solutions

No explanations have been posted yet. Check back later!

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...