MNSU WK 2 Calculating the Mass Acceleration & Momentum of An Object Question

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Znmvylva

Science

McNeese State University

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I'm working on a physics practice test / quiz and need support to help me understand better.

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1 An agricultural airplane (crop duster) weighs about 30,000 Newtons. Calculate the mass of the airplane. This airplane can reach from 0 to a speed of 170 m/s in 1.5 minutes. Calculate the airplane's acceleration. How much thrust (force) must the airplane's engine develop to reach the above- calculated acceleration? 2 When a five Kilogram artillery shell exits a 1000 Kg cannon barrel, it has a muzzle speed of 1100 m/sec. What is the shell's momentum when it leaves the barrel? What is the cannon's momentum? What is the velocity of the cannon when it recoils? 3 Calculate the momentum of a 2 kg bowling ball rolling at a speed of 18 miles per hour. Calculate the weight of the bowling ball. Calculate the kinetic energy of the bowling ball right before it hits the pins. How can you describe the gravitational potential energy of this rolling bowling ball? 4 An escalator lifts an 80 Kg person to the second floor of a department store at the height of 5 meters in 10 seconds. How much work is done to raise the person to the second floor? After reaching the second floor, how much has the gravitational potential energy of the person increased? What is the power of this escalator? What is the power of this escalator in the horsepower unit? Hint: Every mechanical horsepower (hp) is equal to 746 Watts. 1 hp = 746 Watts
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Evlnxnexv (1109)
Purdue University

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