first 8 hours, as shown in the graph below.
Approximately when did the 200th visitor go to this site?
(A) before 2 P.M.
(B) between 2 and 3 P.M.
(C) between 3 and 4 P.M.
(D) between 4 and 5 P.M.
(E) after 5 P.M.
- An observer recorded the velocity of an object in motion along the x-axis for 10 seconds. Based
on the table below, use a trapezoidal approximation to estimate how far from its starting point the
object came to rest at the end of this time.
CHALLENGE
t (sec) 0 2 3 5 7 10
v(t)
(units/sec)^231 −1 −2^0
(A) 0 units
(B) 1 unit
(C) 3 units
(D) 4 units
(E) 6 units
- An 18-wheeler traveling at speed v mph gets about (4 + 0.01v) mpg (miles per gallon) of diesel
fuel. If its speed is mph at time t, then the amount, in gallons, of diesel fuel used during the
first 2 hr is approximately
(A) 20
(B) 21.5
