# Science:Math Exam Resources/Courses/MATH110/April 2019/Question 01 (b)

MATH110 April 2019
Other MATH110 Exams

### Question 01 (b)

Suppose the position (in metres) of an object moving in a straight line at time ${\displaystyle t}$ (in seconds) is given by a function ${\displaystyle f(t)}$ such that ${\displaystyle f'(1)=2}$ and ${\displaystyle f''(1)=-1}$ , then

(a) the object’s velocity at ${\displaystyle t=1}$ is 2 m/s and the object is speeding up.

(b) the object’s velocity at ${\displaystyle t=1}$ is 2 m/s and the object is slowing down.

(c) the object’s velocity at ${\displaystyle t=1}$ is −1 m/s and the object is speeding up.

(d) the object’s velocity at ${\displaystyle t=1}$ is −1 m/s and the object is slowing down.

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