Describe a situation in which a system has nonzero velocity while the net external force on it is zero.

Q: For how long a time must a tow truck pull with a force of 550 N on a stalled 1200 kg car to give it…

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Q: Two friends are standing on opposite ends of a canoe that is initially at rest with respect to a…

A: Since there is no external force in the horizontal direction the momentum of the system remains…

Q: QUESTION IS IN THE PICTURE   Object A experiences the force for _______ amount time compared to…

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Q: The center of mass of a system of particles has a constant velocity if: the velocity of the center…

A: When the center of mass of a system of particles has a constant velocity means acceleration of the…

Q: every force acting on the particle's free-body diagram will create an impulse, even though some of…

A: True. For FBD although forces acting on body create impulse but the net work done by the impulsive…

Q: 1. The magnitude of the impulse on object A is _____ the magnitude of the impulse on object B. A…

A: The magnitude of the impulse on object A is _____ the magnitude of the impulse on object B. Answer:…

Q: An object that has momentum can best be described as O a changing its velocity b having its mass in…

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Q: A 100 N net force acts right on a 5 kg object through a displacement of 20 m right. The initial…

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Q: The nozzle of a fire hose ejects 9 kg/s of water at a speed of 27 m/s. Estimate the recoil force on…

A: Given data: Mass flow rate (m/Δt) = 9 kg/s Change in velocity (Δv) = 27 m/s Required: The recoil…

Q: Replace the force and couple system acting on the frame by an equivalent resultant force and specify…

A: We find the forces in x and y direction and then the resultant force,

Q: The parameters of instantaneous speed, altitude, net engine thrust, and wind speed are given for the…

A: For the load , ux= 200+30=230 m/s. ( Adding the speed                                            of…

Q: A 1000 kg car and a 2000 kg truck are both driving at the same speed. The both have tires with the…

A: Force acting on a moving body in case of friction is present is given as, F=ma-f=ma-μmg=maa=-μg

Q: In order to properly specify the effect of a force on an object we need: O The magnitude, direction,…

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Q: 2 One car travels 40. meters due east in 5.0 sec- onds, and a second car travels 64 meters due west…

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Q: When a rifle with a longer barrel is fired, the force of expanding gases acts on the bullet for a…

A: According to work energy theorem, change in kinetic energy of a system is equal to the work done on…

Q: What are the conditions for calling a force as an impulsive force?

A: An impulsive force is a force which acts for any length of time and resulting in a change of…

Q: Total momentum will be conserved in a collision provided that: The collision occurs only in one…

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Q: If a 0.50-kg block initially at rest on a frictionless, horizontal surface is acted upon by a force…

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Q: In order to catch a ball, a baseball player moves his or her hand backward in the direction of the…

A: In order to catch a ball, a baseball player moves his or her hand backward in the direction of the…

Q: The sum of a particle's acceleration relative to its center of mass is equal to the acceleration of…

A: To check whether the statement: "The sum of a particle's acceleration relative to its center of mass…

Q: Two masses and a compressed spring are at rest on a frictionless surface. A string holds the system…

A: As no external force is acting so momentum remains same. Momentum before = momentum after

Q: Two people are standing on a frictionless floor; person 1 (m1 = 150 kg) is on the right and pushes…

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Q: (T/F) The velocity change of two separate objects involved in a collision will always be equal. True…

A: This statement is true only in case of elastic collision. Loss in velocity of one object is equal to…

Q: The momentum of a moving object will change if the velocity remains the same the object is not in…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Describe a situation in which the net external force on a system is not zero, yet its speed remains…

A: Consider a ball tied to a string which is undergoing circular motion at constant speed. The net…

Q: For a system to accelerate, an external force is required. True or false

A: According to the Newton's 2nd law of motion,               F = ma               a = fm

Q: In a game of pool, ball A is moving with a velocity v_0 when it strikes balls B and C which are at…

A: Given data: The initial velocity of ball A is v0=19 m/s. The initial velocity of ball B is vB0=0…

Q: Why is it easier to stop a loaded truck than a heavier one that has equal speed?

A: Work required to stop a vehicle is equal to the kinetic energy of the vehicle.

Q: A body of mass 15 kg moving with velocity of 2 m/s is acted upon by a force of 75 N for two seconds.…

A: Mass (m) = 15 kg initial velocity (u) = 2 m/s Applied force (F) = 75 N Time (t) = 2 seconds

Q: 2-27. Determine the resultant of the coplanar force system in Fig. P 2-27 and locate it with respect…

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Q: Professional golfers can drive the ball over 200 m. While air resistance is significant, its effects…

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Q: Ball B is hanging from a cord of negligible weight. An identical ball A is measured 3m above the…

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Q: The club was in contact with a ball, initially at rest, for about 0.0030 s. If the ball has a mass…

A: According to the impulse-momentum theorem, the impulse exerted on the ball will be equal to its…

Q: a ball of mass 2 kg impinges directly with a ball of mass 1 kg, which is at rest. if the velocity is…

A: Given data: The mass of the ball is m1=2 kg  The mass of the smaller ball is m2=1 kg  The velocity…

Q: A system can have a nonzero velocity while the net external force on it is zero. Describe such a…

A: Nonzero velocity indicates that the system moves with some amount of velocity, whether the motion is…

Q: Two blocks of masses m and 3m are placed on a frictionless, horizontal surface. A light spring is…

A: Using Momentum Conservation,

Q: From the top of a tower 100 m in height a bail is dropped and at the same time another ball is…

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Q: A 3 kg block sits on a level table and a string runs over the edge of the table on a pulley to a…

A: Free body diagram gives whole idea of the forces acting. Force brings about motion and changes in…

Q: A rocket with initial mass M kilogram (kg) including 60,250 kg of its onboard fuel mixture is fired…

A: GIVEN Initial mass of the rocket = M kg including 60,250 kg of its fuel Exhaust gases are ejected at…

Q: Figure 5-22 shows overhead views of four situations in whicl ces act on a block that lies on a…

A: The box remains stationary when the net force on the box is zero,  In figure (1), the force F2→ is…

Q: Two cars are stationary at the beginning. If the car having 500 kg mass starts to move to the east…

A: It is given that the two cars are stationary at the beginning. Mass of first car m1 = 500 kg Mass of…

Q: When a boxer gets hit on the face by his or her opponent, he or she should move back his or her head…

A: When a boxer gets hit on the face by his or her opponent he or she should move his or her head back…

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”