A horse pulls a cart along a flat road. Consider the following four forces that arise in this situation. (1) the force of the horse pulling on the cart (3) the force of the horse pushing on the road (2) the force of the cart pulling on the horse (4) the force of the road pushing on the horse Which two forces form an "action-reaction" pair that obeys Newton's third law? A) 1 and 2 B) 1 and 3 C) 1 and 4 D) 2 and 4 E) 2 and 3
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A horse pulls a cart along a flat road. Consider the following four forces that arise in this situation.
(1) the force of the horse pulling on the cart (3) the force of the horse pushing on the road
(2) the force of the cart pulling on the horse (4) the force of the road pushing on the horse
- Which two forces form an "action-reaction" pair that obeys
Newton's third law ? - A) 1 and 2
- B) 1 and 3
- C) 1 and 4
- D) 2 and 4
- E) 2 and 3
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- two teams of five men each, from the Seattle Seahawks and the Miami Dolphins engage in a tug of war. Both teams are equally strong so neither team wins. When they do this the tension in the rope between them is 5000 N. In a second activity, The same rope is tied to a tree and all ten of the payers pull on one end of the rope they pull with the same rope is tied in the original tug of war . Now is the tension in the ropeWhich of the following are correct statements of Newton's 3rd law? Choose all that are correct. Any time an object feels a force (like gravity), it also feels a reaction force (like a table pushing up). Any time an object exerts a force on a second object, that second object exerts an equal and opposite force on the first object. The acceleration of an object is equal to the net force exerted on the object divided by its mass. If an object is at rest, that means 2 equal and opposite forces are acting on it.A 920 kg car is pulling a 325 kg trailer. Together the car and trailer have an acceleration of +2.25 m/s2 in the forward (positive) direction. Neglecting frictional forces on the trailer, determine the following.(a) the force on the car N(b) the net force on the trailer N(c) the force exerted on the car by the trailer N(d) the resultant force exerted on the road by the carMagnitude NDirection ° (measured from the left of vertically downwards)
- Two people, one of mass 100 kg and the other of mass 50 kg, stand facing each other on an ice-covered (essentially frictionless) pond. If the heavier person pushes on the lighter one with a force F, then A. the force felt by the heavier person is (-1/2)FB. the force felt by the person is -2FC. the magnitude of the acceleration of the lighter person will be half of the magnitude of the acceleration of the heavier personD. the magnitude of the acceleration of the lighter person will be twice the magnitude of the acceleration of the heavier personwww.crackap.com ---------------------A pickup truck with a mass of 980 kg is initially at rest. The truck accelerates to a speed of 95 km/hr within a distance of 60 meters. a) What is the direction and size of the force that acts on the truck? b) If the truck were carrying a load of 200 kg, what new force would be required to achieve the same acceleration?An object is at rest on a table. The earth is pulling this object down with a force of magnitude m · g. If we consider this force as the action of an action-reaction pair, what is the reaction force of this force m · g? a) The table pushes the object up b) The object pulls up to the ground c) The earth pushes up the table d)The object pushes the table down e)The table pushes down to the ground
- Problem 4: Two teams of seven members engage in a tug of war. Each of the first team's members has an average mass of 67 kg and exerts an average force of 1350 N. Each of the second team's members has an average mass of 72 kg and exerts an average force of 1365 N. a) What is the magnitude of the acceleration of the two teams? b) What is the tension in the section of the rope between the teams?Two objects, A and B, are in contact with each other on a frictionless surface. Object A has a mass of 5 kg, while object B has a mass of 3 kg. Object A exerts a force of 20 Newtons on object B. According to the Third Law of Motion, what is the magnitude of the force exerted by object B on object A? A) 8 N B) 12 N C) 15 N D) 20 NWhich statement is most nearly the same as Newton's third law? A) If the net force acting on an object is zero, it does not accelerate. B) When you push on an object, it pushes back just as strongly on you. C) Acceleration of an object is proportional to net force divided by mass. D) When one object exerts a force on a second object, the first object exerts an equal force on itself in the opposite direction.
- A hammer drives a nail into a piece of wood. Identify an action-reaction pair. The hammer exerts a force on the nail; the nail exerts a force on the hammer. The hammer exerts a force on the nail; the hammer exerts a force on the wood. The nail exerts a force on the hammer; the hammer exerts a force on the wood. The hammer exerts a force on the nail; the wood exerts a force on the nail.A force applied to an object of mass m1 produces an acceleration of 3.20 m/s2. The same force applied to a second object of mass m2 produces an acceleration of 1.10 m/s2. (a) What is the value of the ratio m1/m2? (b) If m1 and m2 are combined into one object, find its acceleration under the action of the force.