When a rubber band is stretched by a distance x , it exerts a restoring force of magnitude F = ax+ bx² , where a and b are constants. The work done in stretching the unstretched rubber-band by L is

Q: A 4.4-kg block is pushed 3.5 m up a vertical wall with constant speed by a constant force of…

A: Given information:Mass of the block (m) = 4.4 kgCoefficient of friction between the block and the…

Q: A force F = (9 î – 4 j) N acts on a particle that undergoes a displacement Ar = (5 î + ĵ) m. (si +i)…

A: It is given that F=(9i-4j) NΔr=(5i+j) m

Q: How far must you stretch a spring with k = 2000_N/m to store 300 J of energy? Express your answer…

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Q: The force required to compress a non-standard spring as a function of displacement is given by the…

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Q: A 500 kg hot air balloon experiences an upward lift force Flift over an interval t = 20.0 s. As a…

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Q: Initially, a spring is stretched 0.50 m from its equilibrium (rest) position. It is then stretched…

A: Given: The spring constant is 10 N/m. The initial stretching is 0.5 m. The final stretching is 0.8…

Q: A 52.8-kg box is being pushed a distance of 7.07 m across the floor by a force P whose magnitude is…

A: .....

Q: force F = (4 î − 5 ĵ) N acts on a particle that undergoes a displacement Δr = (2 î + ĵ) m. Find the…

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Q: When a 4.00 Kg mass hangs on a spring, it stretches by 2.5 cm. a) If we hang a 1.5 Kg mass instead,…

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Q: A 47.4-kg box is being pushed a distance of 6.53 m across the floor by a force P whose magnitude is…

A: Mass of box m= 47.4 kgCoefficient of kinetic friction µ= 0.222Applied Force P=149NDistance d= 6.53…

Q: When a 3.90-kg object is hung vertically on a certain light spring that obeys Hooke's law, the…

A: Given Mass of the objects are given as m1=3.90 kg and m2=1.50 kg The spring stretches  by x1=2.70…

Q: A 55.5-kg box is being pushed a distance of 8.48 m across the floor by a force P whose magnitude is…

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Q: A 2 kg block is pushed 4.0 m along a horizontal floor by a force of magnitude 25 N at an angle…

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Q: How much work was done by the person against Gravity?

A: Initially the center of mass is at a height, The center of mass ends at a height of

Q: Hooke's law describes an ideal spring. Many real springs are better described by the restoring force…

A: The restoring force of the spring(Fsp)s = -k∆s - q(∆s)3  Where k=150 N/m,  q=800 N/m3

Q: A 58.6-kg box is being pushed a distance of 7.05 m across the floor by a force P whose magnitude is…

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Q: 11.) In physics, the work done on an object is equal to the integral of the force on that object…

A: Force in simple terms is nothing but a push or pull. Every object in this world exerts a force on…

Q: A block of mass m=3.9kg is placed on a rough inclined surface making an angle of θ=38o with the…

A: The work done by a force is given as W=F→.S→Where F is applied force and S is the displacement The…

Q: In the figure, a 0.25 kg block of cheese lies on the floor of a 900 kg elevator cab that is being…

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Q: (a) Calculate the work done (in J) on a 1200 kg elevator car by its cable to lift it 38.0 m at…

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Q: n the table below, the directions of the constant force F and the displacement Δr are shown. Write…

A: work done is equal to the dot product of force and displacement vectors w = F→.S⇀ Now, if the angle…

Q: 4 2 A E 0 A -2 D x (m) Find the work done by the force as the particle moves across the following…

A: given -      force vs position graph

Q: A spring having elastic constant k is stretched by a distance x, and stores potential energy U.  If…

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Q: A 55.4-kg box is being pushed a distance of 8.02 m across the floor by a force P whose magnitude is…

A: Free body diagram of the box is shown below. N is the normal force ,mg is the gravitational force…

Q: A 45.9-kg box is being pushed a distance of 6.54 m across the floor by a force P whose magnitude is…

A: mass of box (m) = 45.9 kg distance moved (d) = 6.54 m Magnitude of applied force (P) = 168 N…