If the net work done on a particle is zero, which of the followingstatements must be true? (a) The velocity is zero. (b) The velocity is decreased. (c) The velocity is unchanged. (d) The speed is unchanged. (e) More information is needed.

Q: A force F = (4xi-3y2j)Nacts on a particle, the particle moves along the x-axis from x= 1 to x = 4m.…

A: Write the expression of the force vector on a particle.   F=4xi-3y2j   Write the expression of the…

Q: A constant force F = (2.0i + 4.0j ) N acts on a particle as it moves along a straight line path. If…

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Q: From the figure, the system starts at rest with the spring unextended. Taking m=0.10, when the…

A: Work done by force F on spring is W=12kx2…

Q: When 20 N of force is applied to a spring of natural length 2 m, the resulting compression is 0.5 m.…

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Q: Find the work done (in J) by a force, F=3i - 8j N acts on a particle and displaces it Ar = 2i - 7j m

A: If a force (F) displaces a body by some distance (s), then a work (W) is said to be done by a force…

Q: Is it possible to increase the kinetic energy without the application of external force?

A: yes the kinetic energy will increase without applying any external force. for example, when we kept…

Q: If a 50 kg object initially at rest is displaced 25 m by a constant net force of 600 N in the…

A: Work done is equal to change in kinetic energy of the body . Work done = (Force)*(displacement)…

Q: Cite an example in which a force is exerted on an object without doing work on the object.

A: The work done will be zero when the applied force on an object is perpendicular to the displacement…

Q: If the force and length traveled by the objects are given as scalar while the angle between them is…

A: Given: The force and traveled distance in scalar form. The angle between force and displacement.…

Q: A force acting in the x direction on an object varies with x as shown in fig. below. Find the work…

A: Force-displacement graph is given.

Q: A record for stair climbing was achieved by a man who raced up the 1600 steps of the Empire State…

A: Given data from question,  Number of steps = 1600 Height = 320m Time taken = 10.2min Weight of man =…

Q: A cord is used to vertically lower an initially stationary block of mass M = 20 kg at a constant…

A: mass, m  = 20 kg  downward acceleration, a = g/4  distance, d = 1.5 m

Q: der the action of a force, a 2 kg body moves such that its t3 where x 3 position x as a function of…

A: Work done is defined as the product of magnitude of displacement d and the component of force in the…

Q: Find the work done by a force of constant magnitude F=0,1KN.If the displacement of the body is…

A: Given data: Force, F=0.1 kN = 100 N Displacement, r=100 mm =100×10-3 m = 0.1 m Angle between…

Q: As an object moves from point A to point B only two forces act on it: one force is nonconservative…

A: The work done by non-conservative is responsible for the mechanical energy of system. When work done…

Q: A single force acts on a I kg panticle-like object in such a way that the position of the object as…

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Q: A single force acts on a 2.0 kg particle-like object in such a way that the position of the object…

A: it is given that the mass of the object is m=2kg we have to calculate the work done on the particle…

Q: A big man is towing a large box with a cord that makes an angle of 25 degreeswith the horizontal.The…

A: Force applied on box = 100 N displacement of box = 2 meter angle between force and displacement…

Q: An object is subject to a force F = (571i − 101j) N such that 10,925 J of work is performed on the…

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Q: Refer to the figure. A box is pushed 8 m upward with a force of 75 N in a rough inclined plane.…

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Q: In the question given as follows, determine the work done by the constant force :-   The locomotive…

A: Given,  massm=7 tons=7000 kg displacement (d)=0.25 mile=402.336 m

Q: Calculate the total work done on a 1550-kg car as it coasts 20.4 m down a hill with f = 5.00°. Let…

A: Let m be the mas of the car, s is the distance traveled down the hill, and θ is the inclination…

Q: A truck of mass 900 kg starts with an initial velocity of 2.00 m/s and travels in a straight line…

A: Mass of the truck,

Q: A uniform force of (3i + j) newton acts on a particle of mass 2 kg. Hence the particle is displaced…

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Q: Find the work done by a constant force P on a particle during a displacement d if P = (3î – 2k)N and…

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Q: Find the work done in joules by gravity as an object of the mass m=11 kg is raised up at constant…

A: Mass, m = 11 kg  Height, h1=29 m and h2=78 m  Acceleration, a = -g = -10

Q: A particle is acted upon by only two forces, one conservative and one nonconservative, as it moves…

A: Given, A particle is acted upon by only two forces, one conservative and one non conservative as it…

Q: I need help with this homework problem.

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Q: In the figure shown, if the mass (m36 Kg) is moving with constant speed and traveled a distance d314…

A: mass (m)= 6 kg distance covered (d) = 14 m speed = constant F = 15 N θ = 53o

Q: A projectile has the same initial kinetic energy no matter what th angle of projection. Why doesn’t…

A: To determine,A projectile has the same initial kinetic energy no matter what the angle of projection…

Q: A force of 40 Newtons is applied to an object at an angle of 37 degrees from the horizon, displacing…

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Q: Calculate the total work done by the system from x = 1.40 m to x =4.80 m when force applied on the…

A: Given data : Force, Ft=5.00Nmx i^ + 7.00 Nm2x2 j^ + 9.00 Nm3x3 k^ Displacement x1=1.40 m…

Q: Find the work done in joules by gravity as an object of the mass m=14 kg is raised up at constant…

A: Mass of object m = 14 kg Initial height h1 =34 m Final height h2 = 75 m g = 10 m/s²     Concept…

Q: A box of mass m = 2 kg is kicked on a rough horizontal plane with an initial velocity v_0. If the…

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Q: A 3 kg block is pushed along a horizonal surface by a constant force of magnitude 46 N that is…

A: Given:- The mass of the object m = 3 kg A constant force of magnitude 46 N that is acting 30⁰ above…

Q: What distance can a crane lift a 55.0 N box, if it expends work of 2.00 x 104 Joules?

A: given ;    force, F = 55.0 N , work done = 2.00 x 104  Joules  formula used;     W = F x d   where,…

Q: Is the work done by the applied force positive or negative when a heavy body is lowered to the…

A: Let h be the height at which the body is initially, F be the applied force, W be the work done by…

Q: he work done by a conservative force around a closed path is nonzero.  T  F ??

A: A conservative force is a force done in moving a particle from one point to another, such that the…

Q: Consider a particle on which a force acts that depends on the position of the particle. This force…

A: Work done in the y direction is zero. WAB=∫ABFdy=0

Q: Two forces F1 = (-1.5i-0.8j+0.7k) N and F2 = (-0.7i+1.2j) N, are applied to a moving object. what…

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Q: F = 5000 N 0= 36.9° fk = 3 500 N d =20m Weight = 14 700 N

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Q: The only two forces acting on a 2-kg particle are: F = (3î - 4j) N and F,. The particle moves in the…

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Q: A force = (8x + 7y ) N acts on an object as if moves in the x direction from the origin to x = 7.00…

A: Let the work done is given by W Let the force acting on the object is given by F Let the…

Q: (1.1) A horizontal force pulls a mass of 2,25 kg a distance of 8 m across a rough horizontal surface…

A: Solution:

Q: A truck of mass 200 kg starts with an initial velocity of 1.00 m/s and travels in a straight line…

A: Mass of a truck,

Q: Does the net work done on a particle depend on the choice of reference frame? yes no

A: