A sled is initially given a shove up a frictionless 20.0 incline. It reaches a maximum vertical height 1.10 m higher than where it started at the bottom. Part A What was its initial speed? Express your answer to three significant figures and include the appropriate units.

Q: A block of ice with mass 2.00 kg slides 0.74 m down an inclined plane that slopes downward at an…

A: mass of ice (m) = 2 kg distance moved (d) = 0.74 m θ = 34oinitial velocity (u) = 0 m/s

Q: A 2.85 kg block on a horizontal floor is attached to a horizontal spring that is initially…

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Q: Part A A horizontal spring with spring constant 250 N/m is compressed by 10 cm and then used to…

A: given that,spring constant, k=250Nmcompression, x=10 cmmass, m=300 gcoefficient of friction, μ=0.23

Q: A A physical quantity having both magnitude and direction is a scalar. (True] / (False] Joule is the…

A: (A) False. A physical quantity with both direction and magnitude is usually a vector. Although,…

Q: A 6 kg blocks starts from rest at pt. A and slides a plane that is inclined 35 degrees to the…

A: Given data: Mass of block, m=6 kg Angle of inclination, θ=350 Distance, s=3.2 m Speed of the block,…

Q: A 60 kg sprinter, starting from rest, runs 46 m in 7.0 s at constant acceleration. ▼ Part A What is…

A: The mass of the sprinter is 60 kg.The displacement of the object is 46 m in the first 7s.The initial…

Q: 17. A wheel of mass M and radius R is projected along a horizontal surface with an initial linear…

A: The frictional force is defined as, fx=μN   =μmg Because of friction V0 decreases with time…

Q: A 108 kg man is skiing across level ground at a speed of 9.5 m/s when he comes to the small slope…

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Q: A 1500 kg elevator, suspended by a single cable with tension 16.0 kN, is measured to be moving…

A: Mass of elevator Tension of cable Upward speed We need to calculate, (D) Elevator's kinetic…

Q: You set up a ramp as depicted to practice your skateboard skills. The ramp is a wooden board L=8.0 m…

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Q: A 1500-kg  car traveling at 6.0 m/s  runs into the side of an underpass. The concrete wall is not…

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Q: e Fat an angle to the Ar cos 8. positive, so the sign of Wis force and the displacement. 1 of 1 What…

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Q: A 2.6 kg block is attached to a horizontal rope that exerts a variable force Fx (205x) N, where x is…

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Q: Flag question Let a and b be two unit vectors. a.(a+ (axb)) (a x b) + (bxa) a. (a x b) ax (a.b)…

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Q: 2. At a wedding reception, you notice a small boy who looks like his mass is about 25 kg running…

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Q: Part A A baseball thrown at 100 mph, about the limit of what a professional pitcher can do, slows to…

A: Let, the mass of the baseball is m.  The initial velocity of the baseball, vi = 100 mph The final…

Q: It takes a student t= 9.4 s to push a block m=14 kg at a constant velocity over a distance of d= 8.6…

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Q: Part B What is the work W₁ done on the box by the normal force? Express your answers in joules to…

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Q: A 1.38 kg piece of cheese is placed on a vertical spring of negligible mass and force constant k =…

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Q: A 60.5 kg skier is moving at 6.60 m/s on a frictionless, horizontal snow-covered plateau when she…

A: The mass, m=60.5 kg   The initial speed, vi=6.60 m/s   The distance, L=4.00 m   The coefficient of…

Q: How much work is needed for a 78 kg runner to accelerate from rest to 8.0 m/s? Express your answer…

A: As per the work-energy theorem, the amount of work done by an object will be equal to the change in…

Q: A cutting tool under microprocessor control has several forces acting on it. One force is F =…

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Q: A 80 kg diver steps off a 13 m tower and drops from rest straight down into the water. If he comes…

A: The initial position of the diver, hi=13 m The final position of the diver, hf=-4.6 m The mass of…

Q: An elevator has mass 640 kg, not including passengers. The elevator is designed to ascend, at…

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Q: A net force along the x-axis that has x-component F₂ = -12.0 N+ (0.300 N/m²)a² is applied to a 3.60…

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Q: You set up a ramp as depicted to practice your skateboard skills. The ramp is a wooden board L=9.0 m…

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Q: A roller-coaster car shown in the figure below is pulled up to point 1 where it is released from…

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Q: block of ice with mass 2.00 kg slides 0.810 m down an inclined plane that slopes downward at an…

A: mass of block of ice (m) = 2 kg distance (d) = 0.810 m Angle of incline (θ) = 31o

Q: A roller-coaster car shown in the figure is pulled up to point 1 where it is released from rest.…

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Q: A roller-coaster car shown in the figure is pulled up to point 1 where it is released from rest.…

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Q: 4. An 18.0-kg box is released on a 34⁰ incline and accelerates down the incline at 0.33 m/s². Find…

A: According to the question data m=18kg a=0.33m/s2 we need to find (a) Friction force (b) Coefficient…

Q: A A physical quantity having both magnitude and direction is a scalar. Joule is the SI unit for both…

A: A is false  Physical quantity having both magnitude and direction is called vector quantity.   B is…

Q: You set up a ramp as depicted to practice your skateboard skills. The ramp is a wooden board L=10.0…

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Q: A sled is initially given a shove up a frictionless 27.0 incline. It reaches a maximum vertical…

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Q: A novice skier, starting from rest, slides down an icy frictionless 5.0° incline whose vertical…

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Q: -0 = r h In the figure above, a block slides along a track from one level to a higher level after…

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Q: A 81 kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 350…

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Q: The figure shows a cord attached to a cart that can slide along a frictionless horizontal rail…

A: Change in kinetic energy = ?

Q: A box starts to slide from rest down a smooth inclined plane. as illustrated in the figure. The…

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Q: A 1500 kg car has a maximum power output of 140 hp. Part A How steep a hill can it climb at a…

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Q: A net force along the z-axis that has c-component F = -12.0 N+ (0.300 N/m²) r² is applied to a 3.60…

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Q: Part B A microwave oven of mass 10.0 kg is pushed a distance 8.45 m up the sloping surface of a…

A: B) Determine the frictional force. Determine the work done by the friction. Here, the negative…

Q: A 55.0 kg ice skater is gliding along the ice, heading due north at 4.30 m/s. The ice has a small…

A: Mass of the person is Initial speed is  directed towards north direction.The coefficient of kinetic…

Q: Compressed air is used to fire a 42 g ball vertically upward from a 0.80-m-tall tube. The air exerts…

A: Given Data: Mass of the ball (m) = 42 g = 42×10-3 kg.Length of the tube (x) = 0.8 m.Force on the…

Q: A horizontal spring with spring constant 250 N/m is compressed by 15 cm and then used to launch a…

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Q: Consider two identical 0.300 kg blocks placed on a frictionless, horizontal table. The blocks are…

A: Seed of each block (v) =?