6. The maximum speed of a child on a swing is 4.9 m/s. The child is 0.70 m above the ground at the lowest point of their motion. How high above the ground are they when they stop moving? Neglect friction.
Q: 2. A 50 gram pendulum bob swings back and forth. At the bottom of its swing, it is traveling at 3.4…
A: This is an example of applying Law of Conservation of Energy and oscillatory motion.
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A: spring constant k=85 N/m mass of horizontal spring m=7.5 kg distance x=3.5 cm mass of sprinter m=…
Q: 3. A ball with mass of 300 g is held on top of a vertical spring that has been compressed by 10 cm.…
A:
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A: At point A and B we have to apply conservation of energy principle. Let the reference point be B.…
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A: It is given that,
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A:
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A: Given : m = 4 kg v = 5 m/s h = 8 m g = 10 m/s2
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A: Solution:- Determine the function y at x =2.36 m.…
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A: Given data, Mass of block m = 0.5 kg. Speed of block v = 2 m/s. Spring constant K = 800 N/m.
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Q: 4. Below is the potential energy versus position graph for a particle (mass = 500 g). At one instant…
A:
Q: 2. A 3.0 kg particle is pushed with a force given below. If its speed at x = 2 m is 1.70 m/s what is…
A: work done between x=2 m to x =4m can be simply found by finding the area of given graph between…
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A: Tarzan whose weight W = 688 N The length of the vine L = 18 m The height of h = 3.2 m The vine…
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A: To solve the given problem, we will use the conservation of energy.
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A: Given Mass m = 97 g = 97 × 10-3 kg Kinetic energy = 2.6 J
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A:
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A: Here, 12kx2=mgh
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Q: 3.0 kg A- 400 Nim A 3 kg block placed top of a 3.4 m high frictionless incline. At the bottom of the…
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Q: 2. The spring shown below has k=140N/m. A .5kg block is places against the spring compressing it 11…
A:
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A: Given data: Mass of the car, m=2100 kg Angle, θ=20° Energy lost, ΔE=20×103 J Speed of the car at the…
Q: A trapeze artist, starting from rest, swings freely on a trapeze of length 5.2 m. If the initial…
A: Given data: Initial velocity (v0) = 0 m/s Length (L) = 5.2 m Angle (θ) = 47° Required: Speed at the…
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A:
Q: 4. If the work required to stretch a spring 0.25?? beyond its natural length is 12 ?? − ??, how much…
A: We know that work required to be done to stretch a spring by x from it's natural length is given by…
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A: Write the given values with the suitable variables. m=35 kgh1=1.8 mh2=0.5 m Here, m is the mass, h1…
Q: Tarzan grabs a vine hanging vertically from a tall tree when he is running at 8.7 m/s. How high can…
A:
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- 2. Tarzan, whose weight is W = 688 N, swings from a vine of length L = 18 m. He starts his swing from rest at the edge of a cliff that is h = 3.2 m above the bottom of his trajectory. The vine will break if its tension exceeds T 900 N. W (a) Does the vine break? If the vine does not break, what is the greatest (b) tension in the vine? If the vine breaks, at what angle with respect to the vertical will it break?3. A ball is falling and gains 20 J of kinetic energy. If air drag is also considered, does the ball-Earth system lose more than, less than, or equal to 20 J of potential energy? Explain using physical reasoning.8) A 60.0 kg student starts from rest (Point A) and slides 26.0 m down a hill where the average force of friction is 55.0 N. What is her final speed at the bottom of the hill (Point B) if the vertical drop is 17.0 m? 17.0 m 26.0 m B
- 44. A force of 200 N is required to keep an object sliding at a constant speed of 2 m/s across a rough floor. How much power is being expended to maintain this motion? 50 W 100 W 200 W 400 W3. Imagine building a large pendulum by attaching one end of a 3.25-meter-long cable to the ceiling and the other end to a bowling ball that weighs 64.5 N. If you pull the ball to the side, it will swing back and forth in a circular arc. In one experiment you measure the speed of the swinging ball to be 4.25 m/s as it passes through its lowest point (when the cable is vertical). At that moment, find a. the magnitude and direction of the ball's acceleration b. the tension in the cable