Bissoy.com
Doctors Medicines MCQs Q&A

In rolling, there is the involvement of the vector math. So for rolling which of the following is correct? (For A representing the vector representation of the axis of rotation, r the radius vector and F the force vector)

In rolling, there is the involvement of the vector math. So for rolling which of the following is correct? (For A representing the vector representation of the axis of rotation, r the radius vector and F the force vector) Correct Answer A.(rxF)

The correct form of the equation is given by A.(rxF). Where A represents the vector representation of the axis of rotation, r the radius vector and F the force vector. This is usually done for determining the moment of the force about the axis. That is if the body is being rotated by the force about an axis.

Related Questions

Ten bools are arranged in a row following a certain sequence.Among them 3 History,3 are Economics, 2 are Math's and are English.From the left,There is English book between a History and Math's book, a History book between a Math's and an English book, an Economics book between an English and a Math's Book Math's book between two Economics books and two Economics book between Math's and a History book.Book of which subject is at the sixth position from the left?
A rigid body is rotating about an axis. One force F1 acts on the body such that its vector passes through the axis of rotation. Another force F2 acts on it such that it is perpendicular to the axis of rotation and at a point 5cm from the axis. This force F2 is perpendicular to the radius vector at its point of application. Find the net torque on the body. Let F1 = 10N & F2= 5N.
Which of the following is correct? (For A representing the vector representation of the axis of rotation, r the radius vector and F the force vector)
For a more sensitive governor, the change in angle between OA and the x axis with change in radius of rotation should be? (the x – axis represents radius of rotation and the y axis represents the controlling force.)
Consider the following square with the four corners and the center marked as P, Q, R, S and T respectively. Let X, Y and Z represent the following operations: X: rotation of the square by 180 degree with respect to the S-Q axis. Y: rotation of the square by 180 degree with respect to the P-R axis. Z: rotation of the square by 90 degree clockwise with respect to the axis perpendicular, going into the screen and passing through the point T. Consider the following three distinct sequences of operation (which are applied in the left to right order). (1) XYZZ (2) XY (3) ZZZZ Which one of the following statements is correct as per the information provided above?
In the following question, two columns are given, containing three phrases each. A phrase from the first column may or may not connect with a phrase from the second column to make a grammatically and contextually correct sentence. There are five options, four of which display the sequence(s) in which the phrases can be joined to form a correct sentence. If none of the phrases make a correct sentence, mark ‘None of these’ as your answer. Column (1) Column (2) (A) There are a variety of ways to solve math problems and (D)  a variety of tools to assist with the calculation process. (B) Like reading, the majority of people (E) which graphs to use, not how to construct them. (C) Math today requires decisions about  (F) are born with the ability to do math. 
In the given figure if the angle between OA and x-axis is made 90 degrees, the rotation speed will become 0. (the x – axis represents radius of rotation and the y axis represents the controlling force.)
“What is the different between height and radius of solid cylinder?” Which of the following option is sufficient alone to find the answer? A) A solid cylinder is made by melting a solid sphere. The radius of cylinder is 3 times the radius of a circle whose area is 154 sq.m. Height of cylinder is equal to the height of cone whose volume is 2772 cubic meters. B) Area of a rectangle whose longer side is ¾ times the radius of a solid cylinder, is 168 sq.m and, Volume of solid cylinder is 2772 cubic meters and its height is 18 m. C) A metallic cone of radius 15m and height 35m is melted into the solid cylinder of radius equal to the radius of a circle whose area is equal to the area of rectangle whose sides are in the ratio 4 : 3 respectively. D) The curved surface area of the solid cylinder is 3 time the surface area of a sphere of radius 7m and height of cylinder is equal to the height of a metallic cone whose curved surface area is 308 sq.m. 
Two boys are playing on a ground. Both the boys are less than 10 years old. Age of the younger boy is equal to the cube root of the product of the age of the two boys. If we place the digit representing the age of the younger boy to the left of the digit representing the age of the elder boy, we get the age of the father of the younger boy. Similarly, we place the digit representing the age of the elder boy to the left of the digit representing the age of the younger boy and divide the figure by 2, we get the age of the mother of the younger boy. The mother of the younger boy is younger than his father by 3 years. Then, what are the ages of elder and younger boys ?
Consider the following statements: 1. The Chairperson of a Panchayat at the district level is elected in such manner as the Legislature of the State may provide. 2. Legislature of a State may provide for representation of members of the Legislative Assembly of the State representing constituencies which comprise wholly or partly a Panchayat area at a level other than the village level, in such Panchayat. 3. The Lok Sabha may provide for the representation of its members representing constituencies which comprise wholly or partly a Panchayat area at a level other than the village level, in such Panchayat. Which of the statements given above is/are correct?