In a continuous printing process, paper is drawn into the press at a constant speed v. Denoting by 'r' the radius of the paper roll at any given time and by 'b' the thickness of the paper, what is the angular acceleration of the paper roll.?

Density of the material of a paper is given a 0.5 g cm^(-3) . The mass of the paper is 1 g and its length and breadth are 10 c and 5 cm, respectively. Arrange the following steps in a sequence to find the thickness of the paper. (A). The 0thickness of the paper is ("Volume of the paper (m)")/("Vlume of the paper (V)") (B) The density (d) of the material of the paper is =("Mass of the paper (m)")/("volume of the paper (V)") (C). then the volume (V) o the paper =("Mass of the paper (m)")/("Density (d) of the paper") (D). The volume (V) of the paper is=length xx breadth xx thickness of the paper.

A square sheet of paper is converted into a cylinder by rolling it along its side.What is the ratio of the base radius to the side of the square?

Compare the area of the folder papers with that of the roll. Do you find any increase in the area ? If so try to find out the reasons ?

A rectangular sheat of paper 44cm xx18cm is rolled along its length and a cylinder is formed.Find the radius of the cylinder.

A rectangular sheat of paper 44cm xx18cm is a rolled along its length and a cylinder is formed.Find the radius of the cylinder.

A rectangular sheet of paper, ABCD has AD=1cm and AB=rcm, where 1 < r < 2. The paper is folded along a line through A so that the edge AD falls onto the edge AB. Whithout unfolding, the paper is folded again along a line thruogh B so that edge CB also lies on AB. the result is a triangular piece of paper. A region of the triangle is four sheets thich. In terms of r, what is the area of this regions?

A ring of radius R is rolling purely on the outer surface of a pipe of radius 4R At some instant the center of the ring has constant speed =v then the acceleration of the point on the ring which is in contact with the surface of the pipe is

A piece of paper is in the form of a sector, making an angle a. The paper is rolled to form a right circular cone of radius 5 cm and height 12 cm. Then the value of angle a is

If a rectangular paper of length 6 cm. and width 3 cm. is rolled to form a cylinder with height equal to the width of the paper, then its base radius is