In the lever below, what mass (labelled A) is required to lift the 10 kg mass? 30° below horizontal (a) 0.16 kg (b) 0.32 kg (c) 0.38 kg (d) 3.2 kg 0.8 m Hinge 0.30 m 10 kg
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- A short cantilever beam is subjected to three forces. If α = 45°, determine the value of F in kN that will make the magnitude of the resultant of the three forces smallest as shown in the figure. Take F1 = 70 kN and F2 = 25 kN.DD =25i need help to do it correctly the solution answered is available and even the answers for 25th in table i just need explanationhow to do it? please thank you! M person 80 kg safe m ladder 30 kg caution unsafe L/3 mass fraction 0.37878788 L mass fraction 0.86363636 Nfloor 1078 N Nwall max 270 N available Ff max 270 N available L/3 way up the ladder top of ladder DOB Theta deg radians Tan theta Cot theta mu required Ff required mu required Ff reqd 25 80 1.3962634 6 0.17632698 0.0668 72.0 0.1523 164.2Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the door. One child pushes with a force of 17.5 N at a distance of 0.600 m from the hinges, and the second child pushes at a distance of 0.450 m. What force must the second child exert to keep the door from moving? Assume friction is negligible.
- You set up a Halloween prank by attaching a small board to a hinge above your front door. The far end of the board is held up by a cable that can be released by remote control. You place a spooky spider on the board that is dropped on unsuspecting trick-or-treaters when you release the cable. The drawing below shows the set-up. cable 40° 13 Hinge 60 cm You use a board that is 60 cm long and the cable makes an angle of 40 degrees with the board when the board is held horizontally. You place the spider a distance of r = 40 cm from the hinge. The board has a mass of 3.1 kg and the spider has a mass of 1.3 kg. The hinge applies both a horizontal force and a vertical force. You will be asked to determine the direction of both of these forces (left, right, up, down). What is the magnitude of the tension in the cable in Newtons? T = N What is the magnitude and direction of the horizontal force from the hinge? Enter a positive number for the magnitude. Fh= N Direction ---Select--- What is the…A point with mass m is a distance d from the end of a bar, which we'll call x = 0. The mass-per-length > of the bar is low at one end and steadily increases toward the other end at x = L like λ = bx. m = 0.9 kg d = 12 cm L = 56 cm b = 2.6 × 1012 kg/m² Find F [N] = L d x=0The diagram shows a uniform 30 cm strut weighing 5 N supporting a 10 N weight 10 cm from the pivot. Find the tension in the cable attached to the wall. 10 cm 10 N 30°
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