Question

Speed time graph question

Answer 1

I got the answers i just want someone to confirm that i am correct? T=0.3794733192 and V= 1.897366596\

Answer 2

total distance = area under the graph so

1.44 = 0.5VT + 0.5VT + VT = 2VT

and acceleration = V/T = 5


agreed?

Answer 3

cool @cwrw238

Answer 4

no, one mistake

the area is in km and acceleration is in m/ s^2

so correct is

1440 = 2VT

Answer 5

so you need to solve the 2 equations
VT = 720
V = 720/T

substituting

5 = 720 / T^2
T^2 = 720 / 5 = 144
T = 12

Answer 6

find V by plugging T= 12 into 1440 = VT

Answer 7

V is in m/s and T is in seconds

Answer 8

t=19.25 n speed =40