A skateboarder at a skate park rides along the path shown in figure below. If the speed of the skateboarder at point A is v = 1.64 m/s, what is her speed at point B? Assume that friction is negligible

Q: A 65-kg skier with an initial speed of 11.2 m/s coasts up a height h=2.6-m high rise as shown in the…

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Q: In the figure, a frictionless roller coaster car of mass m = 826 kg tops the first hill with speed…

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Q: A 73.0-kg skier starts from rest from the top of a 49-m high slope. What is the speed of the skier…

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Q: A 261 kg ball from a demolition machine is propelled sideways until it is 4.83 m above its lowest…

A: Given : Mass of a ball (m) = 261 kg Height (h) = 4.83 m

Q: A daredevil on a motorcycle leaves the end of a ramp with a speed of 30.5 m/s as in the figure…

A: Given, Initial velocity is 30.5 m/s velocity at maximum heigh is 28.8 m/s

Q: Helen asked her mom to take her to the play ground near her house. She loves to scare her mom by…

A: Mass of Helen m=20.4 kg Helen is initially at a height h=3.30 m Since she starts from rest her…

Q: A 36.3-kg child starting from rest slides down a water slide with a vertical height of 12.0 m.…

A: Given data: Mass of the child (m) =36.3 kg Vertical height (h) = 12 m Need to determine the Childs's…

Q: In the figure, a frictionless roller coaster car of mass m = 819 kg tops the first hill with speed…

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Q: A 2.1 x 103-kg car starts from rest at the top of a 4.4-m-long driveway that is inclined at 24° with…

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Q: 102 kg man is skiing across level ground at a speed of 9.5 m/s when he comes to the small slope 1.4…

A: Given:- The mass of the person m = 102 kg  The speed of the skis at the ground level vg = 9.5 m/s…

Q: A 67.97-kg skier with an initial speed of vi=36.26 m/s coasts up a H=14.84-m-high rise as shown in…

A: Given :Mass of skier m = 67.97 kgInitial speed u = 36.26 m/sCoefficient of friction μ=0.147

Q: A 79.0-kg skier starts from rest from the top of a 50-m high slope. What is the speed of the skier…

A: Givenheight, h=50 mmass, m=79 kginitial speed, u=0we can use conservation of mechanical energy here…

Q: A 20 kg child slides down the frictionless slide as shown below. If the child the child is given an…

A: Given, Mass, m=20 kg, initial velocity, u=4.5 m/s, Initial height, h1=5 m, and Initial height,…

Q: 35.6 kg child starting from rest slides down a water slide with a vertical height of 12.5 m.…

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Q: A 34.6 kg child starting from rest slides down a water slide with a vertical height of 21.1 m.…

A: Mass of child, m=34.6 kg Vertical height, H=21.1 m Initial at rest, u=0 m/sLet bottom of slide is…

Q: A little girl on a swing is pulled back by her brother she is pulled all the way back until the…

A: The concept used is law of conservation of energy. In given case the energy converted from potential…

Q: A 60.0 kg skier with an initial speed of 13.0 m/s coasts up a 2.50 m high rise as shown in the…

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Q: Same set-up for the conservation of energy was performed. The 5-g marble covered a horizontal…

A: Given: mass of the marble: m=5 g=0.005 kg Elevation of ramp: h=15 cm=0.15 m Horizontal distance…

Q: A 104 kg man is skiing across level ground at a speed of 8.3 m/s when he comes to the small slope…

A: Given that,                     initial velocity(vi)=8.3m/s                     mass of man(m)=104kg…

Q: A skier slides down from the top of a frictionless 400 incline of height 215 m.  If she starts from…

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Q: A roller coaster starts from rest at the top of an 18-m hill as shown.  The car travels to the…

A: Given: The intial speed of the object is 0 m/s. The initial height of the object from the ground is…

Q: A 60.0 kg skier with an initial speed of 14.0 m/s coasts up a 2.50 m high rise as shown in the…

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Q: 21. At an amusement park, a swimmer uses a water slide to enter the main pool. If the swimmer starts…

A: Given data:  Initial velocity (Vi) = 0 m/s Height (h) = 2.31 m Required: The final speed at the…

Q: You are designing a ski jump ramp for the next Winter Olympics. You need to calculate the vertical…

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Q: A skier starts from rest at the top of a hill that is inclined 9.50° with respect to the horizontal.…

A: Newton's second law of motion states that the acceleration of  body is directly proportional to the…

Q: If W(a) and W(g) are workdone on a person by air resistance and gravity respectively, during the…

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Q: A child and sled with a combined mass of 32.6 kg slide down a frictionless hill, starting at the…

A: Given  Initial speed = u = 0 m/s  Final speed = v = 6.69 m/s   Height attain = H =??  Acceleration…

Q: What height does a frictionless playground slide need so that a 35 kg child reaches the bottom at a…

A: According to the law of conservation of energy, the height of the frictionless playground slide is,

Q: A roller coaster with a mass of 725 kg starts with a speed of 22.0 m/s at the bottom of a hill.  At…

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Q: The engine in an imaginary sports car can provide constant power to the wheels over a range of…

A: initial speed u = 0 final speed v = 120 km/h = 50 x 1000/3600  = 13.89 m/s

Q: In the figure, a frictionless roller coaster car of mass m = 819 kg tops the first hill with speed…

A: Given: vo = initial speed of the roller coaster = 17.0 m/s  h = initial height of the roller coaster…