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It is a question about statics: equilibrium of a rigid body, please solve quickly
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- Problem-solving questions At the back of the leg, two muscles pull on the Achilles tendon to create an upward force. Estimate the nett force if cach muscle has a diameter of about 5.0 mm and exerts a force in a direction of 25° from the vertical. (Use a force per unit area of muscle of 7x10° N/m²). An 18 kg penguin slides down an iceberg at an angle of 15° to the horizontal. Friction between the penguin's body and the ice surface is negligible. Determine the normal force acting on the penguin and its acceleration down the iceberg. A manufacturer of children's slides does some tests and discovers that the slope of a slippery slide must be at least 25° to the horizontal for the slide to work. The child involved in doing the testing weighs 35 kg. What is the coefficient of static friction between the child and the slide? A car drives onto a section of the road which is covered in ice. The driver attempts to stop by hitting the brakes but the wheels lock and the car skids for another 60 m.…A rectangular placard weighing F, has a width of 2L. The placard is suspended from a light, horizontal rod hinged at the wall and supported by a cord. Lulu and Lisa's Cafe (a) Determine the tension in the cord. (Use any variable or symbol stated above as necessary.) T = (b) Determine the components of the reaction force (R) exerted by the wall on the rod, in terms of Fa, d, L, and e. (Assume the positive horizontal direction is to the right and the positive vertical direction is upward. Indicate the direction with the signs of your answers.) horizontal R, = vertical Ry =During the downward portion of a biceps curl the velocity of the dumbbell is held constant. If the dumbbell weighs 50 N what is the internal force produced by the muscles? a. 50 N b. < 50 N c. > 50 N d. need more information
- A tutor told me that the answer to 1b was 10N but I don't understand why it would be 10N for the tension. If that is correct could someone break it down for me?In a two-dimensional equilibrium problem, you have three equilibrium equations. What are they?When just a single force is present, can an item be in equilibrium? Explain.
- Question 1) The system shown is in equilibrium. If the weight of the box is 1000 N, then find the magnitude of F₁ and 0. 600 N 30° 400 N XA diver of mass 13.9 kg stands on one end of a diving board of mass 25.2 kg. Everything is inequilibrium (since nothing is moving). What is the magnitude of the support force on the opposite end of the diving board?A) 1,574 NB) 944 NC) 4,046 ND) 566 N