An astronaut on the Moon releases a feather from rest from the top of a small cliff. The Moon’s acceleration due to gravity is $1.6\,\text{m s}^{-2}$. The Moon has no air.
(a(i))[2]
On Fig. 1.1, draw the speed-time graph showing the feather falling.
(a(ii))[2]
Determine the distance travelled by the feather as it falls.
(b)[2]
On Fig. 1.2, sketch the form of a speed-time graph for the same feather falling on Earth.
(c)[2]
Explain how speed differs from velocity. Use the words vector and scalar in your response.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “A straight line extending from the origin to (4.5 s, 7.2 m/s)” …