20.0 kg child is on a swing that hangs from 3.00-m-long chains, as shown in the figure What is her speed vi at the bottom of the arc if she swings out to a 45.0 ∘ angle before reversing direction? Express your answer in meters per second.

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: LA force of 40N is applied to a body to move it at a uniform velocity through a distance of 15m in…

A: Exercise (1): Given: The applied force is 40 N. The displacement of the object is 15 m. The time…

Q: Tarzan swings on a 30.0 - m - long vine initially inclined at anangle of 37.0° with the vertical.…

A: Given data:Length of the Tarzan swing, L = 30.0 MAngle = 37.0°

Q: A 10kg object is released at the top of a building 100m high.if the force of air racing resistance…

A: The mass of the object is m = 10 kg. The height of the building is s = 100 m. The force of air…

Q: A fielder tosses a 0.15 kg baseball at 29 m/s at a 24 ∘ angle to the horizontal.What is the ball's…

A: The kinetic energy of the basketball at the start of the motion is given by, KE=12mv2 Here, m is the…

Q: şame tension is directed parallel to the snow? directed 25° above the snow. The tension in the rope…

A: Given: Tension in the rope, T = 94N Angle b/w rope and snow, θ = 25o Distance covered, s = 35.0m

Q: A 65.0kg ice skater pushes off a wall with an intial velocity of 3 m/s. She travels 71.5m on a…

A: Scenario - A skater pushes herself of a wall and starts traveling in a straight line. But owing to…

Q: A warehouse employee is pushing a 10.0 KG desk across the floor at a constant acceleration of 10m/s.…

A: Solution: Given that mass, m =10 kg acceleration, a =10m/s2 distance, d=100 m

Q: I am not sure as to go about solving this.

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Q: speed

A: Law of conservation of energy: When the body is in motion, it possesses kinetic energy. This energy…

Q: A car needs to generate 75.0 hp in order to maintain a constant velocity of 27.3 m/s on a flat road.…

A: Power is given by,

Q: A 65.0-kg file cabinet of is sliding down a rough ramp for a distance of 5.00 m as shown. The…

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Q: A child on a sled with a total mass of 58.0 kg slides down an icy hillside with negligible friction.…

A: According to law of conservation of energy, when the sled starts sliding from the hilltop, the…

Q: A child is a the top of a treehouse 4.20 m above the ground. She is lifting a bucket of snacks via a…

A: Given data The height of the treehouse from the ground is d = 4.20 m. The mass of the bucket of…

Q: rove that the work done on a body in accelerating it from an initial velocity (v) to a final…

A: work done = force ×displacement

Q: A 25g pen moving at some unknown initial velocity is subject to a constant force of kinetic friction…

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Q: A 53.0-kg skier starts from rest from the top of a 65-m high slope.  What is the speed of the skier…

A: In the given question We have to determine the speed of the skier on reaching the bottom.

Q: A Constant 22 N Horizontal force hits a stationary 3 kg ball. What is its speed after going 1O m?

A: Given data The constant horizontal force is given as F = 22 N. The mass of the ball is given as m =…

Q: A child and sled with a combined mass of 43.0 kg slide down a frictionless slope. If the sled starts…

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Q: Sam, whose mass is 67 kg , straps on his skis and starts down a 40 m -high, 20∘ frictionless slope.…

A: According to the work energy theorem, the net work done on Sam will be equal to his change in…

Q: Using a real world example that relates to environmental science find to places where potential…

A: Potential energy is the energy possessed by the body due to its position. As height from the ground…

Q: Gina was pushed by Adelina from a tall mountain. What was the average power exerted by gravity…

A: Write the given values with the suitable variables. u=0 m/st1=1 st2=5 sm=70 kg Here, u is the…

Q: A 20 kg box slides 4.0 m down the frictioniess ramp shown in the figure(Figure 1), then collides…

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Q: A speed boat requires 63 kW to move at a constant speed of 12.m/s. What is the resistive force in…

A: Power, P = 63 kW = 63000 W Speed, v = 12 m/s   The power of the speed boat is given by  Power =…

Q: ה- S&tim=deeplink&llmsrc=nomer npld=DWebSlghin#/apps/ 3) The kinetic energy of an 1100-kg truck is…

A: Answer :-  Given Kinetic energy of truck (K. E) = 460000 J  Mass of the truck (m) = 1100 kg  Speed…

Q: When an automobile moves with constant speed down a highway, most of the power developeu Dy the the…

A: GIVEN:A car moving down a highway with a speed of 25m/s and has a 205 horsepower engine. 1hp=746W…

Q: A vehicle weighing 1200 kg can reach 90 km / h from a standstill in 8 seconds. Are the amount of…

A: Given: Mass of the vehicle, m =  1200 kg. Initial velocity of the vehicle, u = 0. Final velocity of…

Q: • Your car produces about 34 kW of power to maintain a constantspeed of 31 m>s on the highway.…

A:

Q: A 70 kg cyclist develops 210 watts of power while pedaling at a constant velocity of 7.0 m/s east.…

A: Given  Mass of cyclist m=70kg Power P=210W Speed v=7m/s

Q: Starting from rest, a child zooms down a frictionless slide from an initial height of 5.00 m. What…

A:

Q: Tarzan grabs a vine hanging vertically from a tall tree when he is running at 8.7 m/s. How high can…

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Q: A 67.0-kg skier starts from rest from the top of a 67-m high slope. What is the speed of the skier…

A:

Q: The man push with a force of 100 N. The child and sled combo has a mass of 25 kg and the coefficient…

A: Write the given values of this problem: F=100 Nm=25 kgμk=0.17x=3 m

Q: Tarzan swings on a 30.0-m-long vine initially inclined at an angle of 37.0° with the vertical. What…

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Q: • A 5.76-kg rock is dropped and allowed to fall freely. Find theinitial kinetic energy, the final…

A: Mass of the rock,   The rock drops, so the initial velocity is zero.

Q: Your car produces about 33kW of power to maintain a constant speed of 35 m/s on the highway. What…

A: Give that power P = 33kWThe speed v = 35m/s

Q: A 65.0-kg file cabinet of is sliding down a rough ramp for a distance of 5.00 m as shown. The…

A:

Q: Q2/ A man of mass 80kg runs up a flight of 80 steps in 30 second. Calculate the power output, when…

A: Given: The mass of the man 80 kg.            The number of steps is 80.           The time is 30…

Q: A car speeds at 18 m/s. The force of resistance remains constant at 400.0 N during this time. What…

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Q: While at a water park, Hunter tries the water slide. The starting point is 13.0 m above the ground.…

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Q: An outfielder throws a 0.150-kg baseball at a speed of 30.0 m/s and an initial angle of 30.0°. What…

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Q: Tarzan swings on a 39.0-m-long vine initially inclined at an angle of 38.0° with the vertical. (a)…

A: Let B be the point where Tarzan would start. Let D be the point which is the end/bottommost part…

Q: A child and sled with a combined mass of 49.0 kg slide down a frictionless slope. If the sled starts…

A: Given data:  Mass (m) = 49.0 kg Initial velocity (Vi) = 0 m/s Final velocity (Vf) = 4.00 m/s…