A 834-g ball is thrown at a speed of 38.4 m/s from the top of a 45.9-m high cliff. Determine the impact speed of the ball when it strikes the ground. Assume negligible air resistance. Answer: m/s (positive values only)

Q: Children slide down a frictionless water slide that ends at a height of 1.80 m above the pool. h m…

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Q: A stunt performer, standing at the edge of a 10 m high building, falls off and lands on a…

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Q: If a 3.9 kg object is placed on a frictionless incline of 55.6 ° and released from rest, what is…

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Q: 3. You are watching a fancy celebration which includes fireworks. These are shot from a movable…

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Q: Gayle runs at a speed of 3.20 m/s and dives on a sled, initially at rest on the top of a…

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Q: A rock of mass m falls from the top of a cliff and it experiences a significant amount of air drag…

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Q: A wagon with its passenger sits at the top of a hill. A strong wind suddenly rolls the wagon 188m…

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Q: pass by. you fnying horizontally at a height of h = 21.95 m. When the swallow is directly overhead,…

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Q: A small rock is thrown vertically upward with a speed of 25.0 m/s from the edge of the roof of a…

A: Part A:Step 1:Given data:v0​=25m/sΔy=y1​−y0​=0−21m=−21ma=−9.8m/s2Step 2:Now we have to calculate…

Q: a). A cannon located 10 m from the ground is used to shoot a metal ball directly upward into the air…

A: a ) Maximum height the ball will travel measured from the ground  Maximum height the ball will…

Q: Chapter 08, Problem 022 Your answer is partially correct. Try again. A 54 kg skier starts from rest…

A: Given data: Mass m = 54 kg Height H= 23m Angle θ=27°

Q: V Three youths push a 40.0-kg block of ice so that it begins to coast on a frozen lake. With an…

A: mass of block of ice (m) = 40 kg Initial speed (u) = 3 ms

Q: A skier leaves a ski jump at 14.4 m/s at some angle Q. At what speed is he travelling at his maximum…

A: Given : initial speed u =14.4 m/s maximum height H =4.4m angle of projection =Q

Q: Children slide down a frictionless water slide that ends at a height of 1.80 m above the pool. 1.80…

A:

Q: A theme park is planning out a new free-fall ride. The drop is almost perfectly frictionless, with a…

A: Given:-  The height of the theme park is planning a new free-fall ride h = 190 m. The initial…

Q: A baseball is thrown vertically upward with an initial velocity of 9 m/s. Neglecting air friction,…

A: At the maximum height, the velocity is zero,

Q: A tired cyclist on a bicycle (102.0 kg combined) starts with an initial velocity of 15.0 m/s at the…

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Q: A water slide is constructed so that swimmers, starting from rest at the top of the slide, leave the…

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Q: roblem 10: While watching the clouds pass by, you notice a European swallow flying ally at a height…

A: Motion of projectile can be divided into x component and y component.

Q: Basidiomycete fungi ballistically eject millions of spores into the air by releasing the surface…

A: The initial speed of the spore is given as, u = 0 m/s The final speed of the spore is given as, v =…

Q: An airplane flies at 40 m/s at an altitude of 50 m. The pilot drops a heavy package that falls to…

A: Given               velocity of plane = 40 m/s               altitude ( h ) =50 m

Q: A 19.08 kg block is slid from a height of 7.62 m down a friction-less incline. It comes to a flat…

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Q: A 600g object is thrown from a 2.2m high block (labeled A). Afterwards, it lands on a 1.4m high…

A: Given :     Mass of the object, m = 600 g = 0.6 kg     Height of block A, hA = 2.2 m    Height of…

Q: A child with mass of 16.5 kg stands on the edge of a park bench and leaps into the air. Her initial…

A: The horizontal component of velocity is always constant as there is no acceleration in the…

Q: You drop a ball from your roof of your house. If the ball is 0.8 kg, and the roof is 7 m above the…

A: Given that u=0, h=7m, Using v^2=u^2+2ah v^2= 2×9.8×7 v=sqrt(137.2) V=11.7 m/s

Q: A box slides from rest down a curved slope. Its initial height is 31_m above the ground, and it…

A: PEtop=KEbottom+PEbottom mgh1=12mv2+mgh2v=2gh1-h2

Q: of a mass of 2.5-kg is launched upwards, with an initial speed of 39 m/s. How fast is the object…

A: GivenMass of object, m=2.5 kgInitial speed of object vertically upward, u=39 m/s

Q: A cyclist coasts up a 10.0 degree slope, traveling 20.0 m along the road to the top of the hill. If…

A: Given:Initial speed,  u= 9.00 m/sAngle,  θ = 100Distance  d = 20 m

Q: Compressed air is used to fire a 46.0 g ball vertically upward from a 1.8-m-tall tube. The air…

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Q: An object of mass 12.9 kg enters a rough floor with speed of 10.1 m/s. The coefficient of friction…

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Gravitational force

In nature, every object is attracted by every other object. This phenomenon is called gravity. The force associated with gravity is called gravitational force. The gravitational force is the weakest force that exists in nature. The gravitational force is always attractive.

Acceleration Due to Gravity

In fundamental physics, gravity or gravitational force is the universal attractive force acting between all the matters that exist or exhibit. It is the weakest known force. Therefore no internal changes in an object occurs due to this force. On the other hand, it has control over the trajectories of bodies in the solar system and in the universe due to its vast scope and universal action. The free fall of objects on Earth and the motions of celestial bodies, according to Newton, are both determined by the same force. It was Newton who put forward that the moon is held by a strong attractive force exerted by the Earth which makes it revolve in a straight line. He was sure that this force is similar to the downward force which Earth exerts on all the objects on it.