30° T=400 N 30° 30
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- A block of mass 3.7 kg is stationary on a horizontal surface. The coefficient of static friction, µg= 0.25. Calculate the magnitude of the maximum possible static friction force, in N, which can be generated, if an external force is applied to the block. Use 2 s.f. in your answer. L. FN +X F f. W = mgWrite an expression for the component of net force, Fnet,x, in the x direction, in terms of the variables given in the problem statement. Fnet,x=Suppose you pull a suitcase with a strap that makes a 60° angle with the horizontal. The magnitude of the force you exert on the suitcase is 40 Ib. a. Find the horizontal and vertical components of the force. b. Is the horizontal component of the force greater if the angle of the strap is 30° instead of 60°? c. Is the vertical component of the force greater if the angle of the strap is 30° instead of 60°? a. Consider the figure (not to scale) to the right. It shows the force vector F along with its horizontal and vertical components, F, and Fy, respectively. Which of the following formulas will correctly evaluate F Fx and Fy? TO O A. F, = F| sin 0 and F, = F| cos 0 O B. F = |F| tan 0 and F, = |F| cot0 O C. F=|F| cos 0 and F, = |F| sin 0 O D. Fy = |F| cot 0 and F, = |F| tan 0
- The image below shows a box with an applied force. The static coefficient of friction between the box and surface is 1.2. 19 kg 400 N 20° (a) Determine the magnitude of the applied force along the x axis. (b) Determine the normal force as the force is applied. mumKrystal's cat, Charlie, had an unfortunate experience this morning. Charlie climbed the curtain and was afraid to come back down. Krystal heard the meowing and came to help him down. She decided this was a good opportunity to calculate the tension force Charlie exerted on the curtains. She placed him on a scale and used his mass to calculate the tension force on the curtains. If the cat caused 37N of tension on the curtain, what is Charlie's mass?A block resting on a plane inclined at an angle 36o from the horizontal is being held in place by steel cables a, b, and c as shown in the figure below. The tension in cable b is 75.0 N. Note that cable a is parallel to the surface of the incline and that cable b is perfectly horizontal. a. determine the normal force N and the force due to gravity ??.b. What is the mass of the block in kilograms?
- What is the net force of a 4.0 N force and an 8.0 N force acting on an object for each of the following conditions?(a) The forces act in opposite directions.N (b) The forces act in the same direction.NTwo dogs pull horizontally on ropes attached to a post; the angle between the ropes is 80.0∘. Dog A exerts a force of 250 N , and dog B exerts a force of 300 N . a. Find the magnitude of the resultant force. b.If the coefficient of static friction between all surfaces in contact is µg = 0.3 and a determine force P that must be applied to wedge A in order to lift the block weighing 500 N. The weight of wedge A is negligible compared to the block. B P
- A man pulls a cement block with a force of 450N using a rope that makes an angle of 35.0 degrees above the horizontal. What is the x-component of his pulling force?g force is max gravetional forceA 37 N block rests on an inclined plane with a slope of 25°. What is the normal force acting on the block?