A pole-vaulter just clears the bar at 5.50 m and falls back to the ground. The change in the vaulter's potential energy during the fall is -3700 J. What is his weight?

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Q: An accelerating object of mass m=20 kg is fired with an initial speed v;=3 m/s at a starting point.…

A: Given: mass of an object, m = 20 kginitial speed, vi = 3 m/sfinal kinetic energy, KEf = 122 J

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Q: A force of 25 N acts on the board at an angle of 45°. The board moves a total of 3331111000 inches.…

A: Given data:  Force (F) = 25 N Angle (θ) = 45° Displacement (d) = 3331111000 inches Required: The…

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Q: An accelerating object of mass m=20 kg is fired with an initial speed v;=10 m/s at a starting point.…

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Q: 4. This Olympic skeleton athlete slides down an icy track head first. The track has many twists and…

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Q: 1. A 0.14 k-g pine cone falls 16m to the ground, where it lands at a speed of 13 m/s. (a) With what…

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Q: 3. The energy needed to increase the speed of a certain car from 22 m/s to 54 m/s is 2900 kJ. a)…

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Q: A 0.6 kg box moves up a ramp with some initial speed. It reaches a vertical height of 3.5 m before…

A: Solution: Given: m = mass of box = 0.6 kg g = gravitational acceleration = 10 m/s2 h = height of…

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Q: 34 Which of the following is ALWAYS true regarding the law of conservation of energy? a. Potential…

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Q: 2. A rollerskate is dragged across the ground for 3.4 meters, by someone pulling on its shoelace.…

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Q: work done by Jerome in climbing the staircase.

A: Given: Mass of the person is m=102 kg Vertical distance covered is h=2.29 m Time taken is t=1.32 s…

Q: 13. Through what vertical distance does the block rise as it slides up to its highest point on the…

A: Given: Mass,m=500g=500×10-3kgAcceleration due to gravity,g=9.8m/s2Coefficient of kinetic…

Q: An accelerating object of mass m=7 kg is fired with an initial speed v;=8 m/s at a starting point.…

A: Given: mass of object m = 7 Kg initial speed vi = 8m/s Final kinetic energy KEf = 369 J To find:…

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Q: The force constant of a spring is 2.5*10^3 N/m. a.) how much work does gravity do when it pulls the…

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Q: y-4 m/s h2.18m An 84 kg snowboarder is coming down the hill and takes off from a jump. At one point…

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Q: A 340 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 2.2 N/cm…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: A child sets a 2.5 kg block in motion by giving it a push along a floor. This gives the block a…

A: Given: The mass of the block is m=2.5 kg The initial velocity of the block is u=0 m/s The final…

Q: The energy stored in a spring is 20 J when it is stretched to 5cm. How much energy is stored when it…

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Q: 13. A block launched at Figure P9.13 speed v down an in- cline slides down the incline (there is…

A: solution: The block is sliding along the incline rough plane. As the plane is rough there is a loss…

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A: Given Mass of ball = m = 0.50 kg initial velocity= u = 16 m/s We have to calculate the kinetic…

Q: 4. A 73 kg skier starts at rest at the top of a 100 m high hill. He skies down this hill and back up…

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Q: 1. A 0.66-kg object with an initial velocity of 3.30 m/s in the positive x-direction is acted on by…

A: According to guidelines we need to solve only first question kindly repost other questions in the…

Q: 2. While training for the upcoming UAAP season, a 60-kg athlete does 30 pushups in a minute,…

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Q: Consider a block of mass 25 kg being pulled up a rough incline by a 250-N pulling force parallel to…

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Q: An accelerating object of mass m=20 kg is fired with an initial speed v;=7 m/s at a starting point.…

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Q: A 5.0 kg box moves up a ramp with some initial speed. It reaches a vertical height of 3.0 m before…

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