On Earth, an astronaut and equipment weigh 1,960 N.  While weightless ikn space, the astronaut fires a 100-N rocket backpack for 2.0 s.  What is the resulting velocity of the astronaut and equipment?

Q: A car with mass 1300 kg was travelling at 10 m/s when the driver stepped on the brakes. The car was…

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Q: 357 kg car is moving at 35–. The driver then accelerates at 3.5 for 18.3s s2 a. How fast is the car…

A: given   m=1857 kg      initial velocity u=35 m/s      acceleration a= 3.5 m/s2     t=18.3 s v = u…

Q: Power vs airspeed curve for a jet airplane is shown in the Figure. The velocity that corresponds to…

A: Minimum velocity is defined as that velocity at which the value of Power is minimum . From the graph…

Q: Lift on an airplane is F = (P2-P1) A. The total wing area of a certain airplane is 20 square meter.…

A:

Q: 16. A roller coaster engineer (yes, there is such a thing) is considering three different designs…

A: The three different designs for roller coaster are represented as : "X" , "Y" , "Z". The initial and…

Q: 2. A 15000 kg plane is flying over a war zone and drops a 297 kg bomb. Assume that air resistance is…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: During a construction project, a 2500 N object is lifted high above the ground. It is released and…

A: Given:  Weight of object, W = 2500 N  mass, m = 2500 / 10 = 250 kg height from which it falls, h =…

Q: 2. A rocket at rest that has a mass of 2 kg. It achieves a speed of 200 m/s at launch. If the engine…

A: *As per the bartleby guidelines we can answer only one question if the given questions are…

Q: 3. A bird tries to lift a worm by flying 47 degrees above the horizontal once it grabs it. If the…

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Q: The 10 Ib weight is supported by the cord AC, a roller and by a spring. If the spring has an…

A: Given data: d=4 inW=10 lbLo=8 in Need to determine the spring constant.

Q: launches the rocket from a baseball outfield so in lands ontop of a new parking structure, 15 m…

A: Given:- The height of the rocket from the lunching point h = 15 m  The horizontal distance from the…

Q: 2. A mass of 4 kg is dropped with a velocity of 5 m/s. a. Find an expression for the velocity of an…

A: a) Fnet = mg - 60v  ma = mg - 60v  mdv/dt = mg - 60v dv/(mg - 60v) = dt/m  Integrating both sides…

Q: H.W 2: a-A person walking at (1 m/sec) hits his head on a steel beam Assume his head stops in (0.5…

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Q: A 400-N body starts up the incline of 30o with the horizontal (fk = 0.2) with a velocity of 3m/s.…

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Q: A. If Force = pain, which will hurt more, moving INTO the balloon, or moving AWAY from the balloon…

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Q: A particle of mass 6kg moves according to the equation x (t) =10t², where x is in meters and t is in…

A: Given: The mass of the particle is 6 kg. The equation of the position is xt=10t2.

Q: A lift motor has to move a fully laden lift 4 m between floors in 1.5 seconds. the lift has a mass…

A: Weight of an object is the product of its mass with the acceleration due to gravity. Mathematically,…

Q: A conical pendulum has length l and the angle made by the string with vertical is 0 = 20° . The mass…

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Q: 39. a. With what initial speed must you throw a ball vertically for it to reach a height of 20 ft?…

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Q: A 3350 kg cannon is mounted so that it can recoil only in the horizontal direction.   a. Calculate…

A: Given:  Mass of canon, mc= 3350kg Mass of shell, ms= 14.0kg Velocity of shell, vs= 480m/s Angle=…

Q: Boxing gloves are padded to lessen the force of a blow. The glove and face compress 7.50 cm during a…

A:

Q: 1. A 40 lb resultant force causes a block to accelerate at 5 ft/s?. What is the mass of the block?…

A: Force = mass × acceleration

Q: A 1300 kg car A stuck a parked car B with mass 1200kg. The wheels of car B jams a break and known to…

A: Here, we use Newton's second law to get the deceleration of the car after impact. Using kinematic…

Q: Curling is a sport played with 20 kg stones that slide across an ice surface. Suppose a curling…

A: Impulse  is the integral of a force, F, over the time interval,  Impulse applied to an object…

Q: car speeding at 120 kph hits a stationary car at the side of the road. Assuming both cars has the…

A: Given, initially the car is moving with velocity, v = 120 kph = 33.33 ms mass of the car, m1 = m2 =…

Q: A 72.5-kg person is riding in a car moving at 18.5 m/s (assume this is the positive direction) when…

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Q: A 4,400 kg barrel rests on a frozen pond. The barrel is loaded with a 36 kg ball. The barrel fires…

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Q: 13. James and John dive from an overhang into the lake below. James simply drops straight down from…

A: The gravitational force equation is in y-direction is,   mmanay=Gmearthmmanr2ay=Gmearthr2    (2)

Q: A 1300 kg car A struck a parked car B with mass 1200kg. the wheels of car B jams a break and known…

A:

Q: . Sam, whose mass is 75 kg, takes off across level snow on his jet-powered skis. The skis have a…

A: Given, mass of the sam, M = 75 kg thrust force, F = 200 N coefficient of kinetic friction, μk = 0.10…

Q: A ball with a mass of 0.6 kg hits a wall with a velocity of 10 m/s. Wall applies 4000 N force to the…

A: Please note : As per answering guidelines I can answer the first question only. Since, this is not a…

Q: 15g bullet is fired horizontally into a 3 kg block of wood suspended by a long cord. The bullet…

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Q: Question 8 The Velocity vs Time Graph below depicts the motion of an object traveling over 7…

A: NOTE: As per bartbely guidelines we can answer only first question. For remaining questions please…

Q: 1. The 10-lb block has a speed of 4 ft/s when the force of F = (8t²) lb is applied. Determine the…

A:

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: