two blocks with masses 4.5 and 12.76 on a frictionless surface collide head-on. the initial velocity of block 1 is 5.88 and the initial velocity of block 2 is -4.6 . after the collision, block 2 comes to rest. what is the x-component of velocity in units of of block 1 after the collision? note that a positive component indicates that block 1 will be traveling in the direction, and a negative component indicates that block 1 will be traveling in the direction. please round your answer to 2 decimal places.