school
Acemy

Vectors and Motion in Two Dimensions

AP Physics 1· difficulty 3/5

For the projectile above, what is its speed just before impact?

  • A

    24 m/s24~\text{m/s}

    check_circle
  • B

    22 m/s22~\text{m/s}

  • C

    10 m/s10~\text{m/s}

  • D

    32 m/s32~\text{m/s}

Explanation

vx=10v_x = 10, vy=gt=(10)(2.24)=22.4v_y = g t = (10)(2.24) = 22.4. Total v=102+22.42≈24.5 m/sv = \sqrt{10^2 + 22.4^2} \approx 24.5~\text{m/s}.

Want 10 more like this — adaptive to your weak spots?

Practice 10 like thisarrow_forwardPredict my AP score

Related questions

auto_awesomeAll Toolsquestion_answerHomework Q&Amenu_bookAP & SAT PreptimelineLearn Mode