Question

If the distance covered by an object in time t is given by s(t) = t2 + 5t , where s(t) is in meters and t is in seconds, what is the distance covered in the interval between 1 second and 5 seconds?

24 meters

30 meters

40 meters

42 meters

44 meters

Answer 1

s(5) - s(1)

Answer 2

?

Answer 3

s(1) = distance traveled at 1 second
s(5) = distance traveled at 5 seconds
So distance traveled between 1 and 5 seconds = s(5) - s(1)

Answer 4

4 seconds

Answer 5

4 seconds is the time difference; not distance.
s(t) = t2 + 5t

Answer 6

so how do I find the disstance

Answer 7

Calculate s(1) and s(5) then s(5) - s(1)

Answer 8

44 meters?

Answer 9

I got a 6 and then I got a 50 and then I subtracted and got a 44

Answer 10

Correct :)

Answer 11

ok

Answer 12

Just to make sure, the equation you are using is
d = t*t + 5t