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Mathematics
Problem
A particle moves along a line with velocity
v
(
t
)
=
6
−
0.8
t
v(t)=6-0.8t
v
(
t
)
=
6
−
0.8
t
meters per second for
0
≤
t
≤
10
0\le t\le 10
0
≤
t
≤
10
. What is the particle’s average speed, in meters per second, over this interval? a)
2
2
2
b)
2.5
2.5
2.5
c)
25
25
25
d)
2.25
2.25
2.25
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