as8961981 as8961981

18-09-2022
Physics

Answered

a half meter ruler is pivoted at its midpoint and balances whaen a weight of 20N is placed at the 10 cm mark and a weight W is placed at the 45 cm mark on the ruleer. Calculate the weight W

Answer :

asuwafohjames asuwafohjames

21-09-2022

The weight W palced at a distance of 45 cm on a half meter ruler pivote at its midpoint is 15 N.

To calculate the weight W, we use the principle of moment.

Principle of moment?

It states that, if a body is at equilibrium, the sum of clockwise moment is equal to the sum of anticlockwise moment.

From the question,

Clockwise moment (F×d ) = Anticlockwise moment (W×D).......... Equation1

Make W the subject of the equation

W = Fd/D............. Equation 2

Given:

F = 20 N
d = (25-10) = 15 cm = 0.15 m
D = (45-25) = 20 cm = 0.2 m

Substitute these values into equation 2

W = 20×0.15/0.2
W = 15 N

Hence, the weight W is 15 N

Learn more about principle of moment here: https://brainly.com/question/21945515

#SPJ1

Answer Link

Other Questions

A spherical concave mirror has a radius of curvature of 6.0 cm. At what distance from the mirror should a 6.0-cm object be placed to obtain an image that is 48

Consider the picture. Which of the following statements are true? cm. A. B. C. cm cm 0 1 2 3 4 90 10 11 According to Ruler A, the length of the rope is estimate

What is the weight of a 12.5kg mass? What is the mass of a 2.5N weight? 200N are weighed. What is the mass? What will a scale read for a 4kg mass?

if a cup of tea at 80°C is placed on a table in a room of temperature 25°C and stays for a long time what will happen to its internal energy ? its particle's m

A Container holds 24kg of water at 22°c in this water is placed a 0.6kg of Iron that has a temperature of 95°c assuming no heat Is Loss by the system. What will

A chair of weight 130 N N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F F = 37.0 N N directed at an angle

Hooke's Law Quick Check6 of 66 of 6 ItemsQuestionSuppose a 100-gram mass, when attached to a spring, causes the spring to stretch 8 cm.What would you expect a 2

a travelling microscope is focused on coloured chalk dust placed on a plain white paper.A glass block is placed over the chalk dust and the microscope raised by

a beaker placed over a coin contains a block of glass of thickness 12cm.over this block of depth 20cm.calculate the vertical displacement of the coin and hence

Particle 1 is moving on the x-axis with an acceleration of 3.37 m/s² in the positive x-direction. Particle 2 is moving on the y- axis with an acceleration of 5.