'A spade is modelled as a uniform rod, of mass 2kg and length 90cm, attached to a uniform square lamina, of side 20cm and mass 0.5kg. A gardener holds the spade horizontally with hands 30cm and 60cm from the end of the rod. Find the vertical forces exerted by the gardener's hands.' Im having trouble answering this question. They got an answer of 21.7N and 3.3N.

A window cleaner is pulling himself up to a pulley that consists of two disks welded together as shown. The person is currently pulling straight down on the rope in his hands with a force of magnitude 580.4 N. The other rope is also vertical and is attached to the person's center of mass. The person's mass is 74.2 kg, the pulley's total moment of inertia is 395 kgm2, the radius of the small disk is 0.39 m, and the radius of the big disk is 0.73 m.What is the magnitude of the acceleration of the person's center of mass?

A spade is modelled as a uniform rod, of mass 2kg and length 90cm, attached to a uniform square lamina, of side 20cm and mass 0.5kg. A gardener holds the spade horizontally with hands 30cm and 60cm from the end of the rod. Find the vertical forces exerted by the gardener's hands. Im stuck on this question. Pls help me

Please draw the picture of this problem and solve it.  A uniform rigid disk has mass M and radius a, and a uniform rigid rod has mass M' and length b. The rod is placed along the axis of symmetry of the disk with one end in contact with the disk. Find the forces necessary to pull the disk and rod apart.

A sled with a mass of 25.0 kg rests on a horizontal sheet of essentially frictionless ice. It is attached by a 5.00-m rope to a post set in the ice. Once given a push, the sled revolves uniformly in a circle around the post as shown in the figure. If the sled makes five complete revolutions every minute, find the force F exerted on it by the cord. R-

A beam with a length of 2 m and a mass of 10 kg supports a 50 kg box. The beam is connected to a wall by a hinge at its base and a horizontal wire. The wire is connected to the beam 1.5 m from the hinge and makes an angle θ of 35o to the beam. The goal is to find the tension in the wire and the horizontal and vertical components of the force exerted by the hinge on the board Calculate the tension in the string. write down Newton’s 2nd law for both x and y directions. find the horizontal and vertical components of the force that the hinge exerts on the beam. Suppose the maximum tension that the wire can withstand is 1500 N. What is the maximum load that the hinge can support before the wire breaks?

A beam of length 6 m and negligible weight is supported by a pin on its left end A and a roller support on its right end 8. A 15 KN force is applied at 2 m from the pin support. A 6 KN force is applied at 2 m from the roller support. 2 m 15 KN 2 m 6 KN 2 m B Complete the following tasks: 1. Draw a free body diagram of the rod, showing all forces acting on the rod, including reaction forces. 2. Determine the magnitude of all reactions at A and B. 3. Draw the shear force diagram and the bending moment diagram, indicating the values of the shear force and of the bending moment at the pin support A, at 2 m and 4 m distances to the right of A and at the roller support B.

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Q3/ A shaft has three eccentric of mass 1 kg cach. The central plane of the eccentrics is 50 mm apart. The distances of the centers from the axis of rotation are 20, 30 and 20 mm and their angular positions are 120° apart. If the shaft is balanced by adding two masses at a radius of 70 mm and at a distance 100 mm from the central plane of the middle eccentric, find the amount of the masses and their angular positions.

Determine the tension in the cable and the tension or compression in the strut (a) graphically, (b) mathematically from the force triangle, and (c) by the method of rectangular components.