Question

I’m lost on these ones

Constants Correct The graph in (Figure 1) shows the veloaity of a motorcycle police officer plotted as a function of time. PartD How far does the officer go in the first 5 s7 Express your answer using two significant figures Request Answer Part E How far does the officer go in the first 9 s? Express your answer using two significant figures. Submit Request Answe igure く, 1011 : PartF . 50 45 How far does the officer go in the first 13 s? Express your answer using two significant figures 35 30 25 20 15 10 Request Answer 2468101214 ,(s) Provide Feedback

Answer 1

here,

B)

for t1 = 5 s

the distance travelled , s1 = (20 - 0) * ( 5 - 0)

s1 = 100 m

C)

for t2 = 9 s

the distance travelled , s2 = (20 - 0) * ( 9 - 0) + 0.5 * ( 45 - 20) * ( 9 - 5)

s2 = 230 m

D)

for t3 = 13 s

the distance travelled , s3 = (20 - 0) * ( 11 - 0) + 0.5 * ( 45 - 20) * ( 9 - 5) + 0.5 * ( 45 - 20) * ( 11 - 9) + 0.5 * 20 * (13 - 11 )

s3 = 315 m