This question is worth 20 marks Figure 2 shows a decorator's plank, which is 5 m in length, supported on two trestles. The mass of the plank is 37 kg and the mass of the decorator is 70 kg. In or...
This question is worth 25 marks. A block of stone, with a mass of 2600 kg, is being carried on a light sledge. It is held at rest on a smooth ramp by workers pulling on a rope attached to the block. The ramp makes an angle of 14° with the horizontal, and the rope is parallel to the ramp. Each worker can pull with a force of maximum magnitude 350 N. a.Draw a force diagram of the situation described....
(III) A uniform rod AB of length 5.0 m and mass M = 3.8 kg is hinged at A and held in equilibrium by a light cord, as shown in Fig. 9-67. A load W = 22 N hangs from the rod at a distance d so that the tension in the cord is 85 N. (a) Draw a free-body diagram for the rod. (b) Determine the vertical and horizontal forces on the rod exerted by the hinge. (c) Determine...
Question 4 16 marks As shown in figure 2, a climber with a mass of 60 kg is held by a rope connected to her climbing harness; the force of the rope on her has a line of action through her centre of mass. Her heels rest directly in line with her legs against the cliff. The indicated angles are e 40.0° and 30.0°. Her feet are on the verge of slipping against the cliff face .. Figure 2. A...
uestion 6 20 marks You should be able to answer this question after studying Unit 5 A mountain rescue team is preparing to move a stretcher (with an injured climber) down a flat slope. The combined mass of the climber and stretcher is 110 kg, and the slope makes an angle of 15° with the horizontal. The stretcher is held at rest by a rope that makes an angle of 20° with the upward slope. The stretcher is on the...
1. The block shown in (Figure 1) has mass m = 7.0 kg and lies on a fixed smooth frictionless plane tilted at an angle θ = 24.5 ∘ to the horizontal. a. Determine the acceleration of the block as it slides down the plane. Express your answer to three significant figures and include the appropriate units. b. If the block starts from rest 19.0 m up the plane from its base, what will be the block's speed when it...
9) A beam of mass 16 kg and length 1.2 m is supported in two ways: at the wall with a hinge, and by a rope tied to its other end at an angle θ = 34◦ , as Figure 3 shows. At the hinge the wall exerts on the beam a force F of unknown direction and magnitude (shown as a dashed arrow). a) Write three equilibrium equations: for rotation around the hinge (balancing torques), and for translation in...
Figure 5 shows a piece of fitness equipment installed in a park. The horizontal part of the equipment can be treated as a simply supported beam with its self-weight acting as a uniformly distributed load (UDL) of 58.86 N m A 70.0kg person standing at the centre of the beam can be considered as a point load, F. The length of the beam is 3.00 m, with the symmetric supports 2.40 m apart. 70 kg point load 3,00 m 2.40...
QUESTION 2 |15 MARKSI (a) Figure 2 shows a collar with a mass, m of 25 kg and coefficient of kinetic friction, pk of 0.3. The attached spring has an unstretched length 7=0.15 m and a stiffness k = 55 Nm. (i) Draw the free-body diagram (FBD) of the system when the collar is at point A with applied force, F = 250 N acting at angle 6 = 30° as shown in Figure 2. [4 Marks] (ii) Find the...
Part A Suppose the rod in the figure has mass m 0.48 kg and length 22 cm and the current through it is 1 = 33 A (Figure 1) If the coefficient of static friction is μ-053 determine the minimum magnetic field magnitude of B Express your answer using two significant figures. (not necessarily vertical) that will Just cause the rod to slide. Give the Submit Part B Figure 1of1 Give the direction of B relative to the vertical (outwards...
Problem 9.08 Part A The two trees in (Fioure 1) are 7.2 m apart. A backpacker is trying to lift his 17-kg backpack out of the reach of bears. Calculate the magnitude of the force F that he must exert downward to hold the backpack so tnat the rope sags at its midpoint by 1.5 m Express your answer to two significant figures and include the appropriate units. F-Value Units Submit My Answers Give Up Part B Calculate the magnitude...