Q200 · Practice questionSimple familiar1 mark
QUESTION 200
The diagram is a top view of an object moving at constant speed around a circle. At P its velocity points left. What is the direction of its instantaneous acceleration?
(A)
Left
(B)
Right
(C)
Up the page
(D)
Down the page
WORKED SOLUTION
1 markAnswer D
ANSWER
D. Down the page
Worked solution
Uniform circular motion has acceleration toward the centre. P is above the centre, so its acceleration is down the page, perpendicular to its instantaneous leftward velocity.
Equivalent physically justified methods and consistent equivalent units accepted.
Displayed decimals are model answers; accept appropriate significant figures and consistent rounding from stated constants.
Select D.
Practice question aligned to the current QCAA syllabus; review the worked solution and marking criteria.
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