3.12 Vector applications to kinematics

3.12 Vector applications to kinematics Quiz

IB Maths: Applications and Interpretation HL: Quiz

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5 questions, one answer each

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  1. 1. A particle starts at (1,4)(1,4) with velocity (2,−3)(2,-3) m s−1^{-1}. Find its position after 5 s.

    • A. (10,−15)(10,-15)
    • B. (3,1)(3,1)
    • C. (11,−11)(11,-11)
    • D. (11,19)(11,19)

  2. 2. Find the speed of a drone with velocity (2,3,6)(2,3,6) m s−1^{-1}.

    • A. 1111 m s−1^{-1}
    • B. 77 m s−1^{-1}
    • C. 11\sqrt{11} m s−1^{-1}
    • D. 4949 m s−1^{-1}

  3. 3. AA is at (3,−1)(3,-1) and BB is at (7,5)(7,5). Find AB→\overrightarrow{AB}.

    • A. (4,6)(4,6)
    • B. (−4,−6)(-4,-6)
    • C. (10,4)(10,4)
    • D. (4,4)(4,4)

  4. 4. The velocity of a ball is v=(7, 6−4t)\mathbf{v}=(7,\,6-4t). Find its acceleration.

    • A. (7,−4)(7,-4)
    • B. (0,6)(0,6)
    • C. (7t, 6t−2t2)(7t,\,6t-2t^2)
    • D. (0,−4)(0,-4)

  5. 5. The motion r(t)\mathbf{r}(t) is repeated starting 3 seconds later. Its position at time t≥3t\geq3 is

    • A. r(t+3)\mathbf{r}(t+3)
    • B. r(3t)\mathbf{r}(3t)
    • C. r(t−3)\mathbf{r}(t-3)
    • D. r(t)−3\mathbf{r}(t)-3

Quiz