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#An impulsive force of 100 n pdf#
RD Sharma Class 11 Solutions Free PDF Download.What is the thrust of the engine? What are the initial and final accelerations of the The exhaust gas velocity is 3000 m/s ,Īnd the rocket consumes 25 Kg of fuel per second. Rocket is 5000 Kg, 3500 Kg of which is fuel. A rocket takes off from the surface of the Earth straight up. = (23.3 kg)a, a = 7.73 m/s/s Go to: Problem Formulas Table of Contentsġ5. Time will the engine burn? What is the initial acceleration of the rocket engine? What is theĪcceleration just before it runs out of fuel? a. 250 Kg of fuel per second, and it has an exhaust velocity of 720 m/s. A small rocket probe in deep space has a mass of 68.5 Kg, 45.2 Kg of which is fuel. Seconds it is burning Go to: Problem Formulas Table of Contentsġ4. 25 = 1250 * V.F = m( /\V/t)ī.02 * 5 min * 60 sec/min = 6 kg.fuel burned per second multiplied by the number of At what rateĭoes it consume fuel in Kg/s? How much fuel has it burned in 5 minutes? a. A rocket generates 25 N of thrust, and the exhaust gas velocity is 1250 m/s. V = 11/.0125 or 880 m/s Go to: Problem Formulas Table of Contentsġ3. An 11 Ns rocket engine has 12.5 g of fuel. 3.95 * 5 = 19.7 s.fuel burned per second multiplied by the number of seconds it isīurning Go to: Problem Formulas Table of Contentsġ2. The thrust of the engine? What time must it burn to impart an impulse of 12,000 Ns? How muchįuel will it burn to do this? a. A rocket engine burns 5 Kg of fuel per second. 71 s Go to: Problem Formulas Table of Contentsġ1. How long must the space probe in question 8 fire its engine to change its velocity by 3 m/s? 500 * t = 119 * 3.F = m( /\V/t) N = 43.2/.12 or 360 N Go to: Problem Formulas Table of Contentsġ0. 54 Kg baseball change its velocity 80 m/s. M = 2500/21 or 119 kg Go to: Problem Formulas Table of Contentsĩ. The probe speeds up from rest to a speed of 21 m/s. A rocket engine exerts a force of 500 N on a space probe (in outer space!) for 5 seconds. \V = 3.6/.35 or 10.3 m/s Go to: Problem Formulas Table of ContentsĨ. 35 Kg air track cart if you exert a force of 1.2 N on N = 64/6 or 10.7 N Go to: Problem Formulas Table of Contentsħ. What force exerted over 6 seconds gives you an impulse of 64 Ns? 64 = 6 * N. 36 s Go to: Problem Formulas Table of ContentsĦ. For what time must you exert a force of 45 N to get an impulse of 16 Ns? 16 = 45 * t. \p = Ft Go to: Problem Formulas Table of Contentsĥ. What is the impulse imparted by a rocket that exerts 4.8 N for 1.63 seconds? 4.8 * 1.63 = 7.824 or 7.8 Ns. 066 kg Go to: Problem Formulas Table of ContentsĤ. A bullet going 640 m/s has 42 Kgm/s of momentum. V = 24/5 or 4.8 m/s Go to: Problem Formulas Table of Contentsģ. What speed must a 5 Kg object go to have 24 Kgm/s of momentum? 24 = 5 * V.p = mV What is the momentum of a 23 Kg cannon shell going 530 m/s? 23 * 530 = 12190 kgm/s.p = mV Go to: Problem Formulas Table of ContentsĢ. Impulse and Momentum Impulse and Momentumīy Gary Gende and Owen "O-Dog" Zahorcak, January 1998
