3 (Start on a new page.) A stone is thrown vertically upward at a velocity of 10 m·s-1 from the top of a tower of height 50 m. After some time the stone passes the edge of the tower and strikes the ground below the tower. Ignore the effects of friction. 3.1 Draw a labelled free-body diagram showing the force(s) acting on the stone during its motion.(1) 3.2 Calculate the: 3.2.1 Time taken by the stone to reach its
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with a stationary block of mass M. Assuming a fully elastic collision find the distance the block will slide if the dynamic friction is µ. during swing down m acquires speed u: m g Δh = 1/2 m u2 ⇒ u = [2g R(1 - cosθ)]1/2 let ρ = (m/M) then speed of block just after impact is: V = 2ρ2 u/(1 + ρ) v = u (ρ - 1)/(1 + ρ) so after collision‚ block M has KE: K = 1/2 M V2 friction force does work on the sliding block to bring its speed to zero: W = f Δx = µ M g Δx = K ⇒ Δx = K/(µ M g) = 1 /2 V 2/(µ
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Provide a seamless omnichannel experience 4.2 Data & Insights Data & Insights from various data sources helps in figuring out points of friction and help us strategize to develop actions which would ease and eliminate this friction. The journey from data to insights could be achieved easily through the vast experience. Demystifying ‘big data’ through BI algorithms‚ data warehousing‚ advanced analytics and data sciences to put forth
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2060 IEEE TRANSACTIONS ON ELECTRON DEVICES‚ VOL. 39‚ NO. 9‚ SEPTEMBER 1992 Micromotor Fabrication Mehran Mehregany‚ Stephen D. Senturia‚ Member‚ IEEE‚ Jeffrey H. Lang‚ Member‚ IEEE‚ and Pradnya Nagarkar Abstract-This paper presents a detailed discussion of micromotor fabrication and related critical issues. The micromotors under study are of the variable-capacitance side-drive type with salient-pole and wobble (harmonic) designs. Polysilicon surface micromachining forms the basis of the
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GCE Examinations Mechanics Module M1 Advanced Subsidiary / Advanced Level Paper A Time: 1 hour 30 minutes Instructions and Information Candidates may use any calculator except those with a facility for symbolic algebra and / or calculus. Full marks may be obtained for answers to ALL questions. Mathematical and statistical formulae and tables are available. This paper has 7 questions. When a numerical value of g is required‚ use g = 9.8 m s-2. Advice to Candidates You must show sufficient
Free Force Mass Velocity
GCE Examinations Mechanics Module M1 Advanced Subsidiary / Advanced Level Paper B Time: 1 hour 30 minutes Instructions and Information Candidates may use any calculator except those with a facility for symbolic algebra and / or calculus. Full marks may be obtained for answers to ALL questions. Mathematical and statistical formulae and tables are available. This paper has 7 questions. When a numerical value of g is required‚ use g = 9.8 m s-2 . Advice to Candidates You must show sufficient
Free Force Mass Friction
Formulas used: A=v2-v1/t Friction word that refers to any force that resists relative opposite motion Formulas used: Ff=uFn Forces something that causes a change in the motion of an object Formulas used : F=ma
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More Equilibrium Problems 1. A uniform 25 kg bar‚ 6.0 m long‚ is suspended by a cord as shown. What is the tension in the cord? 270 N 2. A boom hinged at P is held stationary‚ as shown in the diagram below. If the tension in the supporting cord‚ attached three-quarters of the way along the boom from P‚ is 720 N‚ what is the weight of the boom? 2160 N 3. A uniform beam 6.0 m long‚ and with a mass of 75 kg‚ is hinged at A. The supporting
Free Force Mass Friction
incline in the shape of a quarter of a circle of radius R. The block then slides onto a horizontal plane where it finally comes to rest 8 meters from the beginning of the plane. The curved incline is frictionless‚ but there is an 8newton force of friction on the block while it slides horizontally. Assume g = 10 meters per second2. a. Determine the magnitude of the acceleration of the block while it slides along the horizontal plane. b. What time elapses while the block is sliding horizontally
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leaning in the opposite direction of the applied/unbalanced force. Another physical example can be seen if someone were to push an ice cube across a surface. When pushed‚ an imbalance occurs because the applied force is stronger than the kinetic friction force that is aiding in keeping its inertia. Therefore the ice slides‚ but it does eventually slow down and stop. A third example occurs when someone may try or succeed in pulling a tablecloth from beneath the table settings. When the person pulls
Free Force Friction Classical mechanics