7.We will see later in the course that motion on a friction-free inclined plane occurs with uniform acceleration directed down the plane. Block 1 starts from rest and slides down such a plane 20 m long, making the trip in 4 sec. a) What acceleration does the block experience? b) How fast is it moving when it reaches bottom? At he same time Block 1 is released, Block 2 is launched from the bottom.Block 2 travels part way up, stops, and returns to bottom, arriving at the same time as block 1. c) find the launch speed for block 2. d) How far up the plane does it go? e) Sketch the graphs

Given data
	Block 1	Block 2
V
Vo	0
a	?	-2.5 m/s/s
x	-20 m	0
t	4s	4s

Given data for part d)
	Block 1	Block 2
V		0
Vo		5 m/s
a		-2.5 m/s/s
x		?
t