A man with a mass of 100 kg stands on a scale (measuring Newtons) inside a lift that is accalerating upwards at 4 m/s². What is the reading on the scale?

Q: The mass of a subway car and passengers is 34,500 kg. If its acceleration as it leaves a station is…

A: Given data The mass of a subway car and passengers is: m = 34500 kg The acceleration of the car is:…

Q: Looking outside of your window, you notice a bird gliding in the air at a constant speed. Should air…

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Q: An object of mass m = 4kg placed on a frictionless, horizontal table is connected to a string that…

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Q: At a constant speed of 786m/s, a spacecraft of 5640 kg travels in a vacuum. What is the net force on…

A: As we know if there is constant velocity then acceleration will be zero. Then by Newton's second law…

Q: a 2000-kg car initially at rest is held by a friction force that can resist up to 1200 N. If the…

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Q: A mass of 50 kg was moving with a velocity of 400 m/s. A force of 40000 N is applied to the mass and…

A: Mass, m = 50 Kg Initial Velocity, u = 400 m/s Final Velocity, v = 50 m/s Force applied, F = 40000 N…

Q: While standing on a scale, you are riding in an elevator that is accelerating upward. The reading on…

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Q: What is the weight in newtons of a 6.3 kg package of nails?

A: Given data: The mass of the package of nails is: m=6.3 kg The weight of the package of nails is: W…

Q: A crate is acted upon by a net force of 100 N. An acceleration of 4.0 m/s2 results. The weight of…

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Q: Which has more mass, a kilogram of feathers or a kilogram of iron? a. Feathers C. Both b. Iron d.…

A: To identify :  Which has more mass : 1 kg of feathers or 1 kg of iron

Q: What force would be needed to produce an acceleration of 2 m/s² in a ball of mass 4 kg ?

A: Acceleration (a) = 2m/s2 mass (m) = 4 kg Force required (f) = ?

Q: What is the force on a 1000 kg elevator that is falling freely at 9.8 m/s ?

A: Given data The mass of the elevator is m=1000 kg The accleration during the free fall is a=9.81 m/s2…

Q: 38. A l-kilogram bird stands on a limb. The force that the limb exerts on the bird is (1) 1 N (2) 2…

A: As per our guidelines, we are supposed to answer only first one question in case of multiple…

Q: What is the weight in Newton's of a 6.0 kg package of nails?

A: Required : What is the weight in Newton's of a 6.0 kg package of nails.

Q: How much acceleration is produced by a force of 20 N exerted on an object of 4 Kg mass?

A: The equation for the acceleration produced by a force an object is given by,

Q: What does it mean if we say an object is in freefall? The only force acting on it is gravity. The…

A: Freefall of an object is defined as the motion of an object , under the force of gravity alone .…

Q: When Fatima rides her bicycle at 5 m/s, the drag force acting on her and her bicycle is 6 N. If she…

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Q: How much net force is required to keep a 50 - kg object moving rightward with a constant velocity of…

A: Given that  Mass m = 50kg  V= 5 m/s

Q: According to Newton's law the force is equal to mass multiplied by. . b) Acceleration c) Speed a)…

A: According to the Newton's second law of motion the resultant force applied on a body is directly…

Q: What is the weight in Newton's of a 7.4 kg package of nails?

A: Given Data: The mass of the package of nails is, m=7.4 kg   The expression for the weight is,…

Q: An object of mass m, = 4kg placed on a frictionless, horizontal table is connected to a string that…

A:

Q: Two skaters push off each other in the middle of an ice rink. If one skater has a mass of 32 kg and…

A: Given: The mass of the first skater is 32 kg. The acceleration of the first skater is 0.5 m/s2. The…

Q: Jack and Jill are walking with a 5.00-kg plank of wood on their heads. On top of the plank is a…

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Q: An object with a mass of 6 kg is acted upon by a force of 50 N for 8 s. What is the final velocity…

A: Given: Mass of object m = 6 kg Applied force F = 50 N Time Interval t = 8 s Initial velocity u = 4…

Q: a 75 Kg person stands on a scale that reads 500 Newtons, The person is pulling on a rope that is…

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Q: What is the weight of a 70-kgm man at standard condition?

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Q: Someone (whose mass is 60 kg) is standing on a scale in an elevator that is accelerating upward,…

A: By newtons law we know that net force acting on an object is given by  Fnet=ma Where m is mass of…

Q: What is the tension in the rope that lifts a box with a mass of 5 kg (90 degrees)?

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Q: 2,225 kg car moving at 10 m/s on dry pavement, skids to a stop over 110 m. What is the force of…

A: Given: mass of car m=2225Kg initial velocity u= 10m/s final velocity v=0m/s distance travelled s=…

Q: Standing on your bathroom scale in an elevator, you are shocked to see that you weigh 1.5 times your…

A: Let the weight of the person is W=mg Increased weight is WI=1.5mg

Q: The force that propels a rocket is provided by   (A) Gravity (B) Newton’s laws of motion (C) Its…

A: According to Newton's second law of motion ,net force acting on an object is given as,  F= m a  Here…

Q: A student applies an upward force of 150 N to an 8-kilogram backpack to lift it.  Calculate the…

A: Given: Mass of backpack m = 8 kg. Force applied in upward direction F = 150 N

Q: What is the net force of a 1.0 N force and an 6.0 N force acting on an object for forces in opposite…

A: The magnitude of net force is equal to the vector sum of the two forces.

Q: A stack of four textbooks sits on top of a desk. The mass of the bottom book is 5.0 kg, on top of…

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Q: The weight (in newtons) of 600 g of grapes on the Earth is

A: The mass of grapes on Earth is given as Acceleration due to gravity is given as

Q: you push a 5 kg box across a level floor with a force of 15 N, and there is no friction, how fast…

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Q: A rope weighs 600 grams per meter of length. What is the weight in kilograms of 12.2 meters of this…

A: We have 1 meter of length of rope whose weight is 600grams. 600grams = (600/1000)kg…

Q: What net force is required to make a 15 kg box move at a constant speed of 2.0 m/s.

A: Given: Mass, m = 15 kg; constant speed, v = 2.0 m/s

Q: What is the weight in newtons of a 7.8 kg package of nails?

A: Formula of weight is as follows; W=mg…

Q: On Earth at sea level, a rope can sustain a maximum force of 85.7 N before breaking.  What is the…

A: Here, it is given that, the maximum force that can be sustained by rope before breaking is 85.7 N.…

Q: A net force of 15 N exerted on a wooden block produces an acceleration of block is a. 75 kg O b. 10…

A: The acceleration of an object as produced by a net force is directly proportional to the magnitude…

Q: A car of mass 6000 kg moving at 40 m/s is suddenly brought to a stop when a deer crosses the road.…

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Q: What average force is required to stop a 950-kg car in 8.0 s if the car is traveling at 95km/h ?

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Q: The net force on a vehicle that is accelerating at a rate of 1.5 m/s2 is 1,800 newtons. What is the…

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Q: A box with a mass of 10 kg is at rest on a table. The normal force acting on the box is 98 N up 989…

A: Newton's 2nd law is defined as F=ma Here F is the net force, m is mass and a is acceleration.

Q: A test booklet is sitting at rest on a desk. Compared to the magni- tude of the force of the booklet…

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Q: What is the net force needed to act on a 224 kg object in order to accelerate it from rest over a…

A: Let the mass of the object be M, the initial velocity of the object be u, the displacement of the…

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!