Q18 · 2023 · Paper 1Simple familiar1 mark
QUESTION 18
A 20 kg object is placed on an inclined plane with a slope of 35°. If the object experiences a frictional force of 40 N and no additional applied force, calculate its acceleration down the inclined plane.
(A)
3.6 m s-2
(B)
5.6 m s-2
(C)
6.0 m s-2
(D)
7.6 m s-2
WORKED SOLUTION
1 markAnswer A
ANSWER
A
Worked solution
Along the incline, . Dividing by kg gives m s. Option A.
Selects option A.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.