Physics, 16.02.2022 17:00 nshuey0930

In the diagram on the right, a plank weighing 120 N is supported by two trestles at points A and B. A man weighing 480 N is standing on 1m mass centre of of plane the plank.. a Redraw the diagram, showing all the forces acting on the plank. b Calculate the total clockwise moment of the two weights about A. c Use the principle of moments to calculate the upward force from weight of man 480 N weight of plank 120 N the trestle at B. d What is the total downward force on the tresties? tist e What is the upward force from the trestle at A? f The man now walks past A towards the left-hand end of the plank. What is the upward force from the trestle at 8 at the instant the plank starts to tip? g How far is the man from A as the plank tips

In the diagram on the right, a plank weighing 120 N is supported by two trestles at points A and B.

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 10:30, Dweath50

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.

Answers: 3

continue

Physics, 22.06.2019 13:00, hippocampus

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?

Answers: 3

continue

Physics, 22.06.2019 15:00, gabflips7267

What kind of simple machine is a catapult?

Answers: 1

continue

Physics, 22.06.2019 15:00, hma9153

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.

Answers: 1

continue

You know the right answer?

In the diagram on the right, a plank weighing 120 N is supported by two trestles at points A and B....