The diagram below shows the path taken by an object in motion. The object started at paint A and travelled to point D and stopped there. The object started at point A
and went through points B and C to point D. The object travelled at constant speed
throughout the entire trip.
A
B
D
C ​

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^.