Albert pushes a 12 kg box across a level floor. He pushes with a force of 49 N and observes that the box accelerates in the direction of his push at a rate of 3 m/s2. What is the net force acting on the box?

Q: A 2 kg particle moves along an x axis, being propelled by a variable force directed along that axis.…

A: The mass of the particle, m = 2 kg The position vector is x=2 m+ 3 m/st+ct2-4 m/s3t3

Q: Two people are pushing a truck across a parking lot. The truck has a mass of about 2 × 10 kg. First,…

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Q: A single-celled animal called a paramecium propels itself quite rapidly through water using its…

A: Newton's second law of motion states that the acceleration of an object is directly proportional to…

Q: object has a velocity (3.5 m/s)i + (-4.76 m/s)j + (4.68 m/s)k. In a time of 3.21 s its velocity…

A:

Q: An Object with a mass of 6.2 kg accelerates 12.3 m/s2 when an unknown force is applied to it. What…

A: Given value--- mass = 6.2 kg. acceleration = 12.3 m/s2  . We have to find--- force ?

Q: A unicorn running on a beach at 7 m/s changes speed at a constant rate of 3.6 m/s2 over a period of…

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Q: A driver drives his 1225.0-kg vehicle heading north and then turns east at an intersection. It…

A:

Q: Akash and Beth are on skateboards. Beth and her skateboard have a combined mass of 62 kg. Akash and…

A: Mass of Akash + skateboard = 150 kg  Mass of Beth + skateboard = 62 kg  Force applied by Beth on…

Q: An 940 kg dragster, starting from rest, attains a speed of 29.4 m/s in 0.4 seconds. What is the…

A: Concept

Q: An object of mass m has these three forces acting on it . F1, F2, and F3 are shown in the figure.…

A:

Q: In a performance test, each of two cars takes 8.4 s to accelerate from rest to 28 m/s. Car A has a…

A: Given Mass of car A is MA=1415 kg Mass if car B is MB=1856 kg Initial velocity of both car vi =0 m/s…

Q: Two people each have a mass of 65 KG.They are both in an elevator that has a mass a 400 KG. when the…

A: Mass of each person = 65 kg Number of persons = 2  Total mass of persons = 2×65   = 130 kg  Mass of…

Q: A 5-kg object can move along the x axis. It is subjected to a force F in the positive x direction; a…

A: Given datam=5kgTo find-dv=?

Q: You place tomatoes in the pan of a hanging spring scale and find that they weigh 2.9 lb. You measure…

A: We know If a spring of spring constant k, is subjected to a force F which stretches or compresses…

Q: Two   blocks  are  connected  via  a  pulley,  both  blocks  have  a  mass  of  10.kg.  One  block…

A: The net force is mass multiplied by acceleration or rate of change of momentum. The SI unit of force…

Q: Because you wanted space, you woke up on unknown planet. While thinking you dropped a 150-g stone…

A:

Q: he air exerts a forward force of 10 N on the propeller of a 0.40 kg model airplane. If the plane…

A: To determine,the magnitude of the resistive force(FR )exerted by the air on the airplane.given,Force…

Q: After a day of testing race cars, you decide to take your own 1460.7 kg car onto the test track.…

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Q: A 1.5-kg mass has an acceleration of (4.0i - 3.0j) m/s². Only two forces act on the mass. If one of…

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Q: An elevator has a scale that measures the normal force between the contents and the floor. What…

A: Given:Mass,m= 960 kg Accelerating,a=1.5 m/s2Find  force will the scale.Now, Now,The elevator is…

Q: Two ropes are attached to a 40 kg object.  The rope with a 50 N force points along a direction 43…

A: Given:- The mass of the object m = 40 kg   The rope with a 50 N force points along a direction 43…

Q: A single-celled animal called a paramecium propels itself quite rapidly through water using its…

A: Given: Drag coefficient b = 0.330 kg/mSpeed v = 0.000137 m/sNow, the drag force is fd = -bv2As it is…

Q: Blocks with masses of 3.0kg, 4.0 kg, and 5.0 kg are lined up in a row on a frictionless table. All…

A: Given: The mass of the first block is m1=3 kg. The mass of the second block is m2=4 kg. The mass of…

Q: A woman in a lift is trying to weign m/s, and finally decelerates at 1.1 m/s. During the first stage…

A: Given downward accleration ,a=1.7 m/s2costanr speed ,v=3m/sFinaly decelerates at 1.1 m/s2 scale…

Q: A child of mass 22.0 kg runs and slides across the ice in a skating rink.  Initially she is moving…

A:

Q: A horizontal force of magnitude F = 57.5 N pushes on a block of mass m = 4.7 kg. The block is on a…

A: The given situation can be represented as

Q: A crate (20 kg) is hung in an elevator by a cord rated to withstand a tension of 500 N. The elevator…

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Q: Two people are pushing horizontally on a crate of mass 100 kg. One person is pushing from the right…

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Q: Some rubber bands pulling on an object cause it to accelerate. If 5 rubber bands cause it to…

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Q: A cyclist is coasting at 18 m/s when she starts on a 450 m long slope that is 40 m high. The cyclist…

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Q: A horizontal force of 90.7 N is applied to a 60.5 kg crate on a rough, level surface. If the crate…

A: Given Data : The mass of the crate is given as m = 60.5 Kg. The force applied to the crate is given…

Q: A flea jumps by exerting a force of 1.32 × 10-5 N straight down on the ground. A breeze blowing on…

A: Given Force exerted by the flea on the ground is Fflea=1.32×10-5 N Force due to the breeze parallel…

Q: The graph shows the speed of from breaking at 10 s. a 2360.0 kg car as it slows down after the…

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Q: A small rocket of weight 1.7 lbs is launched vertically with thrust 3 lbs from a stand on the ground…

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Q: Laila, who is a part of a critical patient's medical team was responsible for pushing a cart…

A:

Q: Three blocks A, B, and C stand next to each other as shown in the figure. A force F with magnitude…

A: Given- Force (F) = 199.4 N Mass of block A (MA) = 7 Kg Mass of block B (MB) = 45 Kg Mass of block C…

Q: A 26.84 kg dog jumps on a 86.86 kg bed. As the dog walks around on the bed, what is the average…

A: mass of dog = m1 =26.84 kg mass of bed = m2 = 86.86 kg

Q: The acceleration of a particle moving along the 7. x-axis is given by the function a, = -7 ť + 4 t*…

A:

Q: You are given two masses, m₁ and m2, strapped on a pulley with a rope. m₁-13 kg and m2-17 kg. What…

A: Given value--- m1 = 13 kg. m2 = 17 kg . so we can see m2 > m1. We have to find--- What is the…

Q: A model rocket is launched up with a thrust of 44.2 N. At one point in its upward flight, the air…

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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!