with friction force of 870 N and a coefficient of friction 0.23. What is the trailer’s normal force. 870N=.023(FN) divide by .023 FN=870N/.023 FN=37826.7N 9. mass 13.0 kg dropped from a cliff. Find its weight Fw=13.0kg * 9.8m/s^2 Fw=127.4kg*m/s^2 Fw=127.4N 13. A force of 175N needed to keep a 640N engine from sliding. What is the coefficient of static friction? Ff=175N FN=640N divide by 640N µ=175N/640N µ=.273 15. find acceleration of a forklift mass 1400kg pushed by force 2100N opposed by
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experimented for the equilibrant force‚ conditions and center of gravity. Our results showed consideration as to disregarding other forces than weight and tension. 1. Introduction Equilibrium is a state of balance in which it is a condition where there is no change in the state of motion of a body. Equilibrium may be observed on objects which are at rest and also to objects which are moving at a constant velocity. Two conditions for equilibrium are that the net force acting on the object is zero
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affects how much centripetal force affects an object. Centripetal force plays a major part in every day life. This force is the reason for the sensation of being ‘pushed’ into the car door that passengers in a car feel when the driver makes a sharp left turn (The Centripetal Force Requirement‚ n.d.). It is the reason people feel almost weightless on rollercoasters‚ and on an even larger scale‚ it is what keeps the moon orbiting around Earth. Without centripetal force‚ cars would not be able to make
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1. Which of the following sets of horizontal forces could leave an object in equilibrium? a. 25‚ 50 and 100 N b. 5‚ 10‚ 20 and 50 N c. 8‚ 16‚ and 32 N d. 20‚ 20 and 20 N 2. Which of the following sets of horizontal forces could not leave an object in equilibrium? a. 6‚ 8 and 10 lb b. 10‚ 10 ‚ and 10 lb c. 10‚ 20 and 30 lb d. 20‚ 40 and 80 lb 3. If an object is free to move in a plane‚ the number of scalar equations that must be satisfied for it to be in
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Objective: To study the relationships between position‚ velocity‚ and time‚ with acceleration held constant‚ of an object moving in one-dimensional motion with minimum friction. A motion sensor will be used to measure various aspects of vector quantities. Description: An Air Track is positioned along the edge of the table. It is a long straight metal beam with many small holes that are roughly each 2mm in diameter. It is positioned at an angle to allow the gliders to glide down the slope
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Force vector. Equilibrium. Moments. 1. Determine the resultant force and state whether the object is at equilibrium. sin52=0.788; cos52=0.616; sin25=0.423; cos25=0.906; sin27=0.454; cos27=0.891; sin26=0.438; cos26=0.899; 2. If the mass of the plane is 1700kg‚ and drag force is 50kN‚ determine what should be the aerodynamic lift force and engine’s thrust so that the plane flew with constant velocity. 3. The spring was extended to 3cm under mass of 500g. Determine
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basketball has some type of force working upon it. For example‚ without friction a basketball player would be unable to stop because inertia states that objects in motion tend to stay in motion. Without friction acting upon the player‚ there is no force to stop him‚ until he hits a wall that is. With this information you can come to the conclusion that without forces‚ there would be no game of basketball. However‚ what exactly is a force? Webster’s dictionary defines force as a push or pull that can
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equilibrium of forces was investigated through the use of different weights attached to cords which were connected to a central ring‚ while pulleys supported them. This assembly facilitated the force band system to demonstrate that equilibrium will be attaining regardless of disturbances. However‚ due to errors in the experiment‚ the sum of the x and y component did equate to zero as predicted. The graphical solution of the experiment yield a polygon that is completed indicating that all the forces are in
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Force vs. Area Connor Blackmon Chemistry I H‚ 1st Period Mrs. Kris Clements October 18‚ 2012 Problem Will a balloon pop if it is places on a bed of nails and pressure is applied? Hypothesis If a balloon is placed on a bed of nails and a force is applied‚ then the balloon will burst. Variables Independent variable- Force applied to the balloon and number of nails Dependent variable- Does the balloon burst? Materials 14 inch by 14 in by .75 in plywood board x2 196
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it is close to Earth then it is around 8km/s. 17. Why is it important that such a satellite be above Earth’s atmosphere? It is important because it avoids the heating effects of atmospheric friction. 18. What force acts on a satellite that is above Earth’s atmosphere? The only force is gravity. Plug and Chug 1-5 1. Calculate the resultant velocity of an airplane that normally flies at 200 km/h if it encounters a 50 km/h tailwind. If it encounters a 50 km/h headwind? 200+50=250km/h 200-50=150km/h
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