Answer:
d = -26 mm
Step-by-step explanation:
given,
initial position of paramecium, x = 65 mm
final position of paramecium, y = 39 mm
displacement of the paramecium's = ?
displacement = final position - initial position
d = y - x
d = 39 - 65
d = -26 mm
The paramecium's displacement comes out to be -26 mm