Draw a diagram of the water cycle that includes • 6 places where water can be found

•six or more arrows showing how water moves

•3 labels where changes bin the state of matter can be found.

•1 representation of sunlight.

• 1 or more representation of gravity.

• 3 representations of how human causes changes in the water cycle

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^.