Q5 As shown in figure below, a box weighing 10 N is placed at the 0 cm mark of a half-metre rule which iis pivoted at the 15 cm mark. What is theminimum force F needed to lift the box?Oa 4.286 NOb.3.5 NOc 1.5 NOd 10 NSelect one

Answered: Image /qna-images/answer/f68694bf-bfd5-480b-a9ad-18333f74cfa3.jpg

Answered: As shown in figure below, a box…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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1. You are tasked with designing the runway on an aircraft carrier. The minimum speed for the F/A18 Hornet is 200 mph. The Hornet weighs 40,000 lbf and its twin engines provide a thrust of ~40,000 lbf combined, providing a max acceleration of 1g.a. How long must the deck be to takeoff unassisted? Give the answer in ft. b. This is most likely longer than your typical ~450 ft carrier. What acceleration must you achieve with both the engines and with a catapult system together to reach the required minimum speed by the end of the deck? c. What net force (combined engines and catapult) must be applied to the plane to get the acceleration in b? d. Do you think the plane will be able to use disk brakes on its tires to stop when landing?Use your knowledge of friction to make your argument. Also know that their coefficient of friction is ~1.
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B7
SA3. A block is given an initial velocity of 5.00 m/s up a frictionless 20.0° incline. How far up the incline does the block slide before coming to rest? SA4. A man is pulling a crate along a concrete floor. This time, let's be specific. The crate has a mass of 100 kg and the man pulls with a force of 1 250 N. The coefficient of friction between the crate and the floor is 0.2. What is the acceleration of the crate? SA5. A horizontal force of 80 N is used to pull a 20 N wooden box moving toward the right along a horizontal, wood surface as shown. Calculate the magnitude of the frictional force acting on the box. Determine the magnitude of the force acting on the box. Determine the mass of the box. Calculate the magnitude of the acceleration of the box.
Newton's Laws SET-UP #1: Object with weight W supported by 2 cords as shown. Quantities to Measure: T₁ = -2.2 NOTE: W = mg _N; 01 = NOTE: T₁x = T₁SinØ₁ T₁y = T₁CosØ, T₂x = T₂Sin0₂ T₂y = T₂CosØ2 02 = T2 40 70 02 1. Draw a pseudo-FBD showing the x and y components of T1 & T2.
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Dave with a mass of 60 kg goes tubing down a 20 m long hill that has an angle off the horizon of 25º. (Gravity applies) a. He gets a push from the bottom of the hill, so his initial velocity is 2 m/s. How far up the hill will he go before stopping? (there’s no friction) b. He goes back down the hill and then his friend Jill tries to pull him on the tube across a small patch of grass (μk=0.30). If she is pulling parallel to the ground at constant 5 m/s for 5 sec how much power does she expend? c. After climbing back uphill, Dave decided to roll down the hill instead. If he were to be a long cylinder with a radius of 0.1 m, what is his moment of inertia? d. After rolling without slipping down the hill, what is Dave’s final velocity at the bottom of the hill? What is his angular velocity at the bottom of the hill? Dave with a mass of 60 kg goes tubing down a 20 m long hill that has an angle off the horizon of 25º. (Gravity applies) He gets a push from the bottom of the hill, so his…
3. A block slides down a frictionless plane having an inclination of = 20.0°. The block starts from rest at the top, and the length of the incline is 2.00 m. a. Draw a free-body diagram of the block. b. Find the acceleration of the block, and c. Its speed when it reaches the bottom of the incline.

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As shown in figure below, a box weighing 10 N is placed at the O cm mark of a half-metre rule which is pivoted at the 15 cm mark. What is the minimum force F needed to lift the box?