A bowstring behaves like a spring with a spring constant of 420 N/m. It is initially pulled back 30 cm, then takes 0.75 s to pull the bowstring back another 25 cm. How much work was done on the bowstring from 30 cm to 55 cm?

Q: A spring and block are in the arrangement of the figure. When the block is pulled out tox - +5.0 cm,…

A: We know that we have given a system with the spring..When the block is pulled out to x = +5.0 cm, we…

Q: A spring is stretched vertically by a suspended object having a mass of 0.55 kg. How much work is…

A: mass, m = 0.55 kg  stretch, y = 3cm

Q: An archer pulls a bow string back 0.40 meters by exerting a force that increases linearly from zero…

A: Given: The extension in the string is 0.40 m. The force exerted by the string is 460 N.…

Q: A force of 8 lb is required to hold a spring stretched 4 in. beyond its natural length. How much…

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Q: A person pulls a crate 46.8 meters along a horizontal floor by a constant force 103.9 N, which acts…

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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: It takes you 1.5 s to push a 28 kg box by 4.4 m across a horizontal floor with a constant force of…

A: The time taken to push the block, t = 1.5 s The mass of the block, m = 28 kg The displacement of the…

Q: A person pulls a crate 43.9 meters along a horizontal floor by a constant force 103.9 N, which acts…

A: Given: distance travelled by crate d = 43.9 m Force applied by person  F = 103.9 N along 37.9o…

Q: Your job is to lift 30-kg crates a vertical distance of 0.90 m from the ground onto the bed of a…

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Q: A spring is stretched 0.1 m beyond its unstretched length by a force of 100 N. How much work must be…

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Q: An archer pulls a bowstring back 0.500 m by exerting a force that increases uniformly from zero to…

A: It is given that, x=0.500 mF=250 N

Q: A block of mass 2 kg  attached to a spring lies on a flat surface.    When the block is pulled 5 cm…

A: Given values -  Mass of block = m = 2 kg  Displacement = 5 cm = 0.05 m Force = 270 N  According to…

Q: A box is lifted vertically 1.5 m and is then held there. The box has a weight of 100 N. Ignore…

A: Work done on a body is given by,  Work = force × displacement W = (Mg) × ( h) = Potential energy at…

Q: A spring has spring constant k = 230 N/m . How much work does it take to stretch the spring from 10…

A: Given that  Spring constant  K=230 Nm    and  stretched length  x=20-10 cmx=10 cm x=10×10-2 mx=0.1 m…

Q: You do 6.5 J of work to stretch a spring with k = 210 N/m, starting with the spring unstretched.

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Q: A force of 20 Ib is required to hold a spring stretched 8 in. beyond its natural length. How much…

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Q: A force of 16 lb is required to hold a spring stretched 4 in. beyond its natural length. How much…

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Q: A spring has a force constant of 19.0 N/m and a rest length of 0.25 m. How much work must be done to…

A: On stretching the spring, applied force and displacement is in same direction. Work done is,

Q: A force of 12 Ib is required to hold a spring stretched 2 in. beyond its natural length. How much…

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Q: One of the most powerful forklifts was built in Sweden in 1991. The lift is capable of lifting a 9.0…

A: WE KNOW THAT  work=force*displacementforce=workdisplacement

Q: A box m = 85 kg is being pulled by a constant force F = 150 N at an angle of θ= 25 degrees. The…

A: Given data *The mass of the box is m = 85 kg *The angle is θ= 25 degrees *The block moves a distance…

Q: A person pulls a crate 45.4 meters along a horizontal floor by a constant force 106.5 N, which acts…

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Q: If a spring has a spring constant of 400 N/m, how much work is require to compress the spring 1.0 m…

A: Given data: The spring constant is k=400 N/m. The compression in spring is x=1.00 m.

Q: A person pulls a crate 41.3 meters along a horizontal floor by a constant force 118.4 N, which acts…

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Q: A force of 17 Ib is required to hold a spring stretched 3 in. beyond its natural length. How much…

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Q: A person pulls a crate 43.5 meters along a horizontal floor by a constant force 112.3 N, which acts…

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Q: A person pulls a crate 47.9 meters along a horizontal floor by a constant force 106.4 N, which acts…

A: Given: The applied force is 106.4 N. The displacement is 47.9 m. The angle between force and…

Q: A child pulls a toy 2.8 m across the floor by a string, applying a force of constant magnitude 0.950…

A: Given : force applied, F = 0.950 N For 1st 1.4 m string is parallel.  For next 1.4 m string makes…

Q: An archer pulls a bow string back 0.40 m by exerting a force that increases linearly from zero to…

A: Work done is defined as product of force and displacement. Mathematically, W=F.S F is force, S  is…

Q: A person pulls a crate 43.6 meters along a horizontal floor by a constant force 116.5 N, which acts…

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Q: A person pulls a crate 42.7 meters along a horizontal floor by a constant force 115.6 N, which acts…

A: Given crate displacement =  42.7 m constant force applied = 115.6 N, which acts at 37.8 degrees.…