Draw additional masses to show how the block can be made to move toward point a. be sure to draw the string and label the mass of the block. for full credit, draw the minimum number of blocks required to make the block move toward point a.

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?