Q12 · 2024 · Paper 1Complex familiar1 mark
QUESTION 12
The horizontal displacement of an object experiencing projectile motion was measured and recorded against the cosine of the launch angle (i.e. the angle up from the horizontal). The initial velocity was kept constant.
What launch angle would cause the object to land from its starting position?
(A)
0.12°
(B)
1.0°
(C)
6.9°
(D)
83°
WORKED SOLUTION
1 markAnswer D
ANSWER
D
Worked solution
Reading the graph for 1.0 m gives , so . Option D.
Selects option D.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.