A pendulum bob is released from some initial height such that the speed of the bob at the bottom of the swing is 1.3 m/s. The acceleration of gravity is 9.81 m/s 2 . What is the initial height of the bob? Answer in units of m

Q: A sling shot with a spring constant of 150 N/m is loaded with a 0.030 kg rock and pulled back 0.40…

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Q: Noel is playing on a swing and has a weight of 60.0Newtons. Approximately, what is his maximum speed…

A: weight = 60 N initial height = 0.5 m final height = 3 m

Q: For safety reasons, the speed of a child at the bottom of a playground slide cannot exceed 6.0 m/s.…

A: At maximum point, the potential energy completely converted into kinetic energy. So, the expression…

Q: A pendulum at rest has its bob at zero height from the ground. If the bob is pulled back until it…

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Q: A proton (mass m 1.67 x 1027 kg) is being accelerated along a straight line at 1.70 × 1013 m/s2 in a…

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Q: A proton (mass m = 1.67 × 10-27 kg) is being accelerated along a straight line at 2.70 × 1011 m/s2…

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Q: A soccer ball is moving through the air in free fall. At a certain height it has a total mechanical…

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Q: A motor raises a mass of 3 kg to a height h at a constant speed of 0.05 m/s. The battery which…

A: Mass = 3 kg  Stored energy = 4 joules

Q: 6. A bullet moves with a velocity of 600 m/s and has gained a kinetic energy of 900 J. Compute its…

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Q: A sled is initially at rest at the top of a hill at an elevation 55.0 m higher than the elevation at…

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Q: A 10.0 kg mass sliding on a frictionless horizontal surface at 7.00 m/s hits a spring that is…

A: Given : m = 10.0kg V=7 m/sec k=5000 N/m

Q: Question 17 (5 points) Marisa pushes a 1.635 kg book across a table, accelerating it at a rate of…

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Q: Noel is playing on a swing and has a weight of 60.0Newtons. Approximately, what is his maximum speed…

A: weight of noel = 60 N initial height = 0.5 m final height = 3 m

Q: An engine uses 20000 N of force to power a car at an average speed of 5.0 m/s. What is the average…

A: P=Wt=Fdt=Fv

Q: A person is available to ski from the top of a snow mountain whose height is 10.0 m. Ignoring…

A: Since there are multiple questions posted, we will answer the first question for you. If you want…

Q: A man on a motorcycle plans to make a jump as shown in the figure.     If he leaves the ramp with a…

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Q: A motor raises a mass of 3 kg to a height h at a constant speed of 0.05 m/s. The battery which…

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Q: A net force along the x-axis that has x-component Fx=−12.0N+(0.300N/m^2)x^2 is applied to a 4.60 kg…

A: Determine the net work done on the object by the force at x=7.90 m as follows.…

Q: Grug is a creature formed from the top of a Burrawang tree, standing ~1.25m tall. One day, Grug…

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Q: Tarzan is running at top speed 28.8 kph and grabs a vine hanging vertically from a tall tree in the…

A: Given, Speed=28.8km/h

Q: Potential energy (J) A 6.49 kg particle is subjected to only conservative forces, and its potential…

A: A conservative force is force, the work done by which is path independent i.e. work done by 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…

Q: A student pushes a baseball of m = 0.19 kg down onto the top of a vertical spring that has its lower…

A: (a) Apply energy conservation on the baseball and spring system, and solve for the speed of the ball…

Q: 7. A roller coaster has two vertical loops one after the other. The roller coaster has a speed of…

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Q: If a 1.5 kg chicken is running with a speed of 10.0 m/s, its kinetic energy is:   Question 19…

A: Given data:  Mass (m) = 1.5 kg Speed (v) = 10.0 m/s Required: Kinetic energy

Q: In problem no.28, in a simple rectilinear motion, a mass of 100 Kg is given an acceleration of 2.0…

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Q: A 71 kg student traveling in a car with a constant velocity has a kinetic energy of 1.8 x 10^4 J.…

A: We know thatK.E=12mV2V=2(K.E)mHereV=velocity of objectK.E=kinetic energy of objectm=mass of object

Q: Two pole-vaulters just clear the bar at the same height. The first lands at a speed of 8.06 m/s,…

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Q: How high must the body be lifted to gain an amount of potential energy equal to the kinetic energy…

A: Given data: Speed (v) = 20 m/s g = 9.8 m/s2 Potential energy is equals to kinetic energy

Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A: Given values: Equation of y, y=x2d           for x<0y=-x2d       for x>0 Value for d = 2.10 m…

Q: A slingshot, which can be modeled as a spring with spring constant k = 56.4 N/m, is stretched by 16…

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Q: Grug is a creature formed from the top of a Burrawang tree, standing ~1.25m tall. One day, Grug…

A: Given : H=2.6 m, h= 0.69m

Q: A girl is swinging on a swing. At the highest point, she is 3.8 meters from the ground. At the…

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Q: A 12 Kg bowling ball is held 3 meters above the ground at sea level. Assuming that acceleration of…

A: GivenMass of ball, m=12 kgHeight above the ground, h=3 mAcceleration due to gravity, g=10 m/s2

Q: A force acting on a 2.00 kg object is given by F(x) = (2.00 N/m) x + (1.00 N/m³)x³. An object starts…

A: Given value--- mass = 2 kg . F = 2x + x3 . We have to find--- speed of object at x = 2 m .

Q: Noel is playing on a swing and has a weight of 60.0Newtons. Approximately, what is his maximum speed…

A: Given data :- weight W = m.g = 60 N initial height h = 0.50 m final maximum height H = 3.00 m

Q: 7. A constant force with a magnitude of 1.9 x 10 newtons is required to keep an automobile having a…

A: 7. Given  Force F = 1.9 × 103 N  Mass m = 1×103 kg  Displacement S = 2 × 103 m

Q: A horizontal spring with spring constant 230 N/m is compressed by 10 cm and then used to launch a…

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Q: A transport truck driving at a constant speed of 82.0 km/hr on a flat stretch of highway must…

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Q: 4. A 100 kg mass is lifted 1.8 m. What is the potential energy of the mass (in J)? Physics-Problem…

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Q: How long will a vacuum cleaner (800 W) runs on 4x10° J of energy? O 13 hrs 30 min 51 sec O 13 hrs 45…

A: Given, Power,P=800 W Energy,E=4×107J (As per option)

Q: 1) 4 m/s A cart starting from rest rolls down a hill and at the bottom has a speed of 4 m/s. If the…

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Q: If a plane has a mass of 1.3 x 106 kg, and if its speed is 1.5 x 102 m/s, what is its kinetic…

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Q: A roller coaster has two vertical loops one after the other. The roller coaster has a speed of 7.00…

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Q: The skateboarder in the drawing starts down the left side of the ramp with an initial speed of 5.4…

A: On neglecting all conservative force there will be no loss of energy therefore   velocity of…

Q: A cart moves to the right along a frictionless track. What is the minimum speed of the cart at…

A: Given : Cart traveling to the right through the frictionless track.

Q: A slingshot fires a pebble from the top of a building at a speed of 14.0 m/s. The building is 27.0 m…

A: (a) When fired horizontally:- vx=14 m/svy=2gh=2×9.8×27=23 m/s Hence, v=vx2+vy2v=142+232v=26.93 m/s…

Q: An object with mass 0.60 kg is suspended from the ceiling at the end of a 2.0 m long string. When…

A: Given: mass =0.60 kg L=2.0 m v=4.0 m/s Find maximum angle does the string make with the vertical as…

Q: A roller coaster cart of mass m = 241 kg starts stationary at point A, where h1 = 39.4 m and a while…

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