Aflashlight can be made that is powered by the induced current from a magnet moving through a coil of wire. the coil and magnet are inside a plastic tube that can be shaken causing the magnet to move back and forth through the coil. assume the magnet has a maximum field strength of 0.05 t. make reasonable assumptions and specify the size of the coil and the number of turns necessary to light a standard 1-watt, 3-v flashlight bulb.

Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.