lly accelerates a 250 kg cart at 3 m/s2. What must be the force she applied?

Q: A book is pushed downward with a force of 10N. If the mass of the book is 2 kg the 30N 20N 10N ON

A: Given, Downward force=10 N mass of book =2 kg Let normal force is N newton

Q: Suppose you hang a 1.0 kg mass from a spring scale. But this time, instead of holding your hand…

A: Step 1:Given:The mass of the object: m=1.0 kgThe acceleration of the mass: a=5.2 m/s2,…

Q: A horizontal net force F gives a 5.8 kg object an acceleration of 8.5 m/s2. When the same net force…

A:

Q: A pedestria A high wind comes up, blowing toward the west. The wind is capab giving the pedestrian…

A: The mass of the pedestrian is (M) = 80Kg                 He is accelerated (a1 ) =…

Q: You create an elevator to get down a cliff.   Your and the bucket’s mass together is 80 kg (m2).…

A: The free-body diagram of the system is shown below. Here, T is the tension and a is the…

Q: kg block sits on a friction ntal. What is the accele

A: Given: The Force (F) = 25 N  The mass of the block (m) = 3 kg

Q: Sarah stands on a bathroom scale inside an elevator. Sarah's mass is 50 kg. What does the scale read…

A: Given Mass is m=50 kg Acceleration due to gravity is g=9.80 m/s2 Uniform Velocity of elevator is…

Q: A 4500 kg jet reaches a takeoff velocity of 70 m/s after accelerating from rest for 700 m down the…

A: The problem is asking us to determine the net force required by the jet's engines in order to…

Q: Bob sits on an office chair with wheels on it. Moussa exerts a force of 330 N [right 25o down] onto…

A: Given data and free body diagram- applied force F=330 N at angle 25 degrees friction force f=285 N…

Q: Some rubber bands pulling on an object cause it to accelerate. If 4 rubber bands cause it to…

A: Given data:  The acceleration due 4 rubber bands a = 1.80 m/s2

Q: You hang a 1.0 kg mass from a spring scale. Instead of holding your hand still so that the…

A: The spring scale, when held still, uses the acceleration of gravity to measure the object's weight.…

Q: An engineer claims to have a new kind of "safety" air-brake for elevators. If the cable should snap,…

A: Mass, m = 700 lb = 700×0.453 kg = 317.1 kgSpeed, v = 40 mph = 40×0.447 m/s = 17.88 m/sTime, t = 1/20…

Q: A prototype car  with a mass of 6.0 kg accelerates 4.0 m/s2 when an unknown force is applied to it.…

A:

Q: The coefficients of kinetic fraction between this 27 kg box and the floor is 0.25 and the pushing…

A: Given  Coefficient of kinetic friction  ,u = 0.25  Mass of block = M= 27 kg  Applied force = F = 171…

Q: It takes the elevator in a skyscraper 3.0 s to reach its cruising speed of 9 m/s. A 50 kg passenger…

A:

Q: Suppose two children push horizontally, but in exactly opposite directions, on a third child in a…

A: The expression for the Newton’s second law of motion in horizontal direction is,

Q: A stuntman drives a car with a mass of 1600 kg on a drawbridge. The car accelerates with a constant…

A: The situation is modelled below,

Q: An Atwood's machine with a frictionless pulley has mass1 = 5.9 kg and is accelerating up at 4 %3D…

A: Given data The mass of the object 1 is given as m1 = 5.9 kg. The acceleration of the mass 1 is…

Q: A 500 N parachutist is falling with air resistance of 200 N upwards. What si the net force

A: Given the weight of the parachutist W=500N (downwards) The air resistance acting on it Fr= 200N…

Q: The net force on a golf cart is 425 N north. If the golf cart has a total mass of 270 kg, what is…

A: Given: The net force on golf cart is 425 N.            The total mass is 270 kg. To determine: The…

Q: Consider the pulley below where m,>m¡. Show that the acceleration and tension in the string are…

A:

Q: A ball is thrown up from the ground with some initial velocity at an angle of 45degree to the…

A:

Q: A bucket of water is being raised from a well using a rope. If the bucket of water has a mass of 7.8…

A: Upward acceleration is (a) = 3.1 m/s2 Gravitational acceleration (g) = 10 m/s2 Mass of the water (m)…

Q: Imagine you work on a garden store during the summer. If you lift a bag of fertilizer with a force…

A: Force is defined as the product of mass and acceleration of the object. F = m*a…

Q: An Atwood's machine with a frictionless pulley has mass1 5.9 kg and is accelerating up at 3 m/s2.…

A:

Q: An  Atwood's machine with a frictionless pulley has mass1 = 5.9 kg and is accelerating up at 2 m/s2.…

A:

Q: A girl of mass mg is standing on a plank of mass mp. Both are originally at rest on a frozen lake…

A: The girl plank system is isolated, so horizontal momentum is conserved.   The expression for the law…

Q: What is the net force required to accelerate a 11 kg box at a rate of 4.4 m/s2?

A: Given:-  The mass of the box is m = 11 kg  The acceleration of the box is a = 4.4 m/s2. Find:-  What…

Q: A 200-kg object accelerates at 15 m/s2. What is the force applied to the object?

A: Given data The mass of the object is given as m = 200 kg. The acceleration is given as a = 15 m/s2.…

Q: The forces in the figure act on a object of mass m = 1.6 kg. What is the value of ay the y-component…

A: Given: The mass of the object is 1.6 kg.

Q: How much force would a car’s tires need to provide to accelerate an 1800 kg car at a rate of 4.0…

A: The given values with suitable variables are listed below. Here, m denotes the car’s mass and a…

Q: The acceleration of a baseball pitcher’s hand as he delivers a pitch is extreme. For a professional…

A: Acceleration is the change in velocity of an object with respect to time. The acceleration here can…

Q: A stone is pushed with a horizontal force of 1.0 N and accelerates horizontally at a rate of 0.5…

A: Horizontal force of the stone is given as, FH = 1.0 N The acceleration of the stone is calculated…

Q: Two forces are applied to a 22 kg cart on a frictionless surface as shown. At a certain instant,…

A:

Q: Suppose a 55.5 kg55.5 kg gymnast climbs a rope. What is the tension in the rope if she climbs at a…

A: The tension in the rope if the gymnast climbs at constant speed is as follows: T=mgT=55.5 kg9.8…

Q: A tow rope is used to tow a 1750 kg car; this gives it an acceleration of 1.35 m / s2. What forces…

A: Given data: Mass of car is, m=1750 kg. Acceleration of car is, a=1.35 m/s2.

Q: The tension at which a fishing line snaps is commonly called the line's "strength." What minimum…

A: We must discover the strength required to build a line strong enough to stop a salmon. We assume…

Q: A flea jumps by exerting a force of 1.17 x 10-5 N straight down on the ground. A breeze blowing on…

A:

Q: A 1000.0 kg car accelerates uniformly to double its speed from 13.7 m/s in 4.76 s. What net force…

A:

Q: A force of 2.10 N Is exerted on a 6.70 g rifle bullets. What is the bullets acceleration? (write…

A:

Q: A 35.0-kg dolphin decelerates from 12.0m/s to 7.50 m/s in 2.30 s to join another dolphin in play.…

A: If the dolphin decelerates from 12 m/s to 7.50 m/s with in 2.30 s, then its acceleration is,…

Q: A powerful motorcycle can produce an acceleration of 3.50 m/s² while traveling at 90.0 km/h. At that…

A: Introduction:Net force of on the motorcycle is:Fnet = Ma = (245 kg) (3.50 m/s2) = 857.5 N   ....(1)…

Q: A spaceship takes off vertically from rest with an acceleration of 29.0m/s2. What force is exerted…

A: According to Newton’s second law, force exerted on a 75.0-kg astronaut during takeoff can be…

Q: vay at a speed braking force needed to bring the car to a halt in 10 s is about * 5 O 1.0 kN 2.0 kN…

A: The mass of the car is 1000 kg is moving with speed 20 m/s. Then the braking force required to stop…

Q: A net force of 300N accelerates a blue box with a mass of 50Kg. If the same net force is applied to…

A: Given: The mass of the blue box is 50 kg. The applied force is 300 N. The mass of the red box is…

Q: A 70.0-kg man is standing on a scale in an elevator that is accelerating upward at a rate of 2.00…

A: Answer Given  Masst of the man m = 70 kg Acceleration of the elevator a = 2 m/s2 We need to find the…

Q: A person stands on a scale inside an elevator at rest (see the figure below). The scale reads W =…

A: Given: The reading of the person is 846 N ( when the elevator is at rest)

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!