As a rocket ascends higher into the air, it's acceleration increases even if the force on it remains the same. Explain why this occurs.

Q: How much force is needed to make a rocket move in constant velocity in a frictionless outer space?…

A: If a rocket moves with constant velocity, its acceleration will be zero.

Q: The block on the left has a mass of 6-kg and is in contact with the 4-kg block on the right.  Both…

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Q: 118. As an object initially at rest on a horizontal surface is set in motion, the magnitude of the…

A: The force of friction between the object and the surface depends on the normal force. When the…

Q: #7

A: (7)   Consider the free-body diagram for the blocks-pulley system.

Q: A ball is thrown up into the air. Ignore air resistance. When it is rising and reaches half of its…

A: Given : A ball is thrown up into the air. To determine : Net force when the ball reaches half of its…

Q: If the falling body had been given an initial downward push instead of being only released would the…

A: Firstly we have to understand some basic terminology for better understanding of the above problem.…

Q: A boy stits at rest on the floor. Which of the following statements are true? Check all that apply.…

A: Force of gravity (Weight) is acting downwards. Normal force acts upwards. Even though normal force…

Q: Two forces of 3 N and 12 N act on a body simultaneously. The net force on the body is 3 N 12 N 15…

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Q: An object is accelerated by a force of 10N to the right. A second force of 10N suddenly acts in the…

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Q: As a rocket ascends higher into the air, its acceleration increases *even if* the force on it…

A: Given statement : The acceleration of a rocket increases as it ascends higher into the air , even if…

Q: A 70.0 kg rocket accelerates upwards at 5.00 m/s². Determine the force the engines provide. Include…

A: Draw the FBD of the rocket.

Q: As shown below, if F = 60.0 N and M = 4.00 kg,what is the magnitude of the acceleration of the…

A: The force acting on 2M can be resolved into two, Fsin(theta), and Fcos(theta).Equation of motion of…

Q: A force of 100N moves a body on a horizontal frictionless surface when,…. I. Friction force exerted…

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Q: 2. All three 50-kg blocks are at rest. The tension in rope 2 is A. Greater than the tension in rope…

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Q: 68. A rocket of mass 4.5 X 10 kg is accelerating straight up. Its engines produce an upward thrust…

A: According to the Newton's second law , the vertical net acceleration of the rocket is calculated by…

Q: Determine the Resultant of the concurrent force system shown in the figure. F1=500 Ibs F2=200 Ibs ww…

A: There are three forces given, which are concurrent   F₁ = 500 lbs, f₁₂ = 200lbs   F3 = 300lbs.…

Q: A bear sling, Fig. 4–40, is used in some national parks for placing backpackers' food out of the…

A: A bear sling is used in some national parks for placing backpacker’s food out of the reach of bears.

Q: The of the tension force of the string is: Choices: greatest in I greatest in II greatest in III…

A: For Equilibrum forces must be balanced

Q: A 15 kg box rests on a horizontal surface attached to a 5 kg box as shown below. Determine the…

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Q: 83. Two ice skaters, one with a mass of 57 kg and the Th other with a mass of 75 kg, stand facing…

A: According to Newton's third law Every action has equal and opposite reaction.

Q: Which person has the greatest inertia? 1. A 110-kg wrestler resting on a mat 2. A 90-kg man walking…

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Q: A 1.0 kg wood block is pressed against a vertical wood wall by a 12 N force as shown. If the block…

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Q: A 4-kg box and a 2-kg box can move on the horizontal frictionless surface. The box are accelerated…

A: Force applied on 4kg=+12N

Q: 71. The same net force is applied to object A and object B. It is observed that object A has an…

A: Newton's second law of motion states that net force acting on an object is the product of mass and…

Q: 9. The mass of the cart of the modified Atwood's machine is M = 7.08 kg. Given the acceleration of…

A: The mass of the cart of the modified Atwood's machine is M = = 7.08 kg. Given the acceleration of…

Q: person dives toward the bottom of a swimming pool, the bouyant force acting on her increases."

A: As per Archemede's principle  Buoyant force =weight of liquid displaced

Q: As a rocket ascends, its acceleration increases even though the net force on it stays constant. Why?…

A: By Newton's second law of motion, the force is given as, F = ma

Q: Two forces act on a 4.5-kg block resting on a frictionless surface as shown. What is the magnitude…

A: Force is a pulling or pushing action that will cause a change in the body's acceleration. The…

Q: A train typically requires a much greater distance to come to rest,for a given initial speed, than…

A: According to the problem, a statement is given in question we consider the mass of the train is much…

Q: A block of mass m sits at rest on a rough inclined ramp that makes an angle e with the horizontal…

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Q: Determine the resultant of four forces acting on a body as shown below. F1 300 N 400 N F2 4 13 30°…

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Q: A small sports car collides head-on with a massive truck. The greater impact force (in magnitude)…

A: Sports car is small and truck is massive that means mass of car is small then truck. .

Q: What is a practical example of how a body can still accelerate even without changing its speed?

A: Concept :- When a body of mass m moves in a circular path of radius r with uniform speed v then the…

Q: Two masses are suspended by a frictionless cord (as shown in the figure). Where m1 = 30 kg, and m2 =…

A: m1= 30 kg  m2 = 28 kg

Q: Why would a truck take longer to accelerate when the driver hits the gas if it were loaded with…

A: From Newton's second laws, Force = mass × acceleration  So, for a given force , greater the mass ,…

Q: What force does a trampoline have to apply to Jennifer, a 45.0-kg gymnast, to accelerate her…

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Q: N4T.1 Aweight hangs from a string but is pulled to one side by a horizontal string, as shown. The…

A: Write the expression for net force acting on the weight in the vertical direction

Q: You are weightless when you are A. In free fall B. Without a support force C. Infinitely away from…

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Q: 10. If two objects are dropped in an environment without air resistance, what will occur? Both of…

A: Given  two objects of mass m1 and m2  let m1 is lighter than m2 Initial velocity of both object's is…

Q: 7.25. What force does block A exert on block B in Ans. 15.0 N Fig. 7.13? 6 kg 2 kg 45 N A Figure…

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Q: You could do this if you wanted to increase friction between two objects:?

A: Frictional force comes into picture due to relative motion between  the objects in contact.

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!