The cardboard tube within the middles of the roll has an outdoor radius of two.4 cm. The thickness of the paper is 0.4mm. The sequence of distances of the loops of paper away from the middle is the next:
the radius of the ninety fifth loop of paper is the radius of the cardboard tube plus the thickness of the 94 layers of tp earlier than the ninety fifth layer
due to this fact
r = 2.4 94(0.04) = 6.16 cm
observe that you will need to convert 0.4 mm to 0.04 cm
This post is last updated on hrtanswers.com at Date : 1st of September – 2022