When t=3 seconds, 3/4=X/4 and X=3.
S= 1/2*3*3=9/2
2.s = 1/2 * 4 * 4+ 1/2 *(3+4)* 1 = 1 1.5
3. Is t greater than or equal to 1S and less than or equal to 8S?
When t is greater than or equal to 1 and less than or equal to 4S, S= 1/2*t squared.
When t is greater than 4S and less than 5S, s =1/2 * 4 * 4+1/2 * [4-(t-4)+4] * (t-4) = 8+1/2 * (t-4) *
When t is greater than 5S and less than 8S, s =1/2 * (t-4) * (12-t)+1/2 * (t-5+4) [4-(t-5)] =/kloc-0.