Help
Contact
For teachers and institutes
Search courses, problems, tests…
A
A
>_
StemPy Lab
Courses ▾
Problems ▾
Practice ▾
Mock Tests
Classes
Community ▾
A
A
A trolley on a test track has travelled s = t³ + t… | StemPy Lab
Quizzes
/
A trolley on a test track has travelled s = t³ + t metres after t seconds. What is its average speed between t = 1 s and t = 3 s?
Mathematics
Easy
High School (11–12)
Functions and Calculus › Application of Derivatives
A-Level
AP
IB
Created by
StemPy Lab
A trolley on a test track has travelled
s
=
t
3
+
t
s = t^3 + t
s
=
t
3
+
t
metres after
t
t
t
seconds. What is its average speed between
t
=
1
s
t = 1\ \text{s}
t
=
1
s
and
t
=
3
s
t = 3\ \text{s}
t
=
3
s
?
28
m/s
28\ \text{m/s}
28
m/s
14
m/s
14\ \text{m/s}
14
m/s
13
m/s
13\ \text{m/s}
13
m/s
7
m/s
7\ \text{m/s}
7
m/s
Check Answer
Log in to save
Tag someone
⚑ Report
← All Quizzes
← By the Mean Value Theorem, |sin a - sin b| ≤ k |a - b| for all real a and b. What is the smallest value of k that works for every pair?
A cylinder has a fixed height of 10 cm and a radius r that can change, so its volume is V = 10π r². At what rate does V change with r when r = 4 cm? →
More on
Functions and Calculus › Application of Derivatives
Discussion (0)
Log in
to join the discussion.
Loading…
Problems on this topic
A walking path in a nature reserve follows the curve y = x² on a map, with x and y in kilometres…
Hard
A farmer in Devon wants a rectangular pen of area 800 m² against the straight wall of a barn…
Medium
A food company in São Paulo packs one litre of olive oil, which is 1000 cm³, in closed cylindrical…
Hard
A tinsmith in Nairobi has a rectangular sheet of metal, 24 cm by 15 cm…
Medium
All problems on this topic →
Created by StemPy LabCreated by StemPy Lab