An airplane flies at 40 m/s at an altitude of 50 m. The pilot drops a heavy package that falls to the ground below. Neglecting air resistance, the package will land

Q: Superman must stop a 110-km/h train in 160 m to keep it from hitting a stalled car on the tracks.…

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Q: An 8.7 kg block slides with initials speed of 1.66 m/s across a level floor. How far does the block…

A: The equation of motion is given by,

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Q: In New York City, a ball festival was held. In the contest, a ball with a mass of 5 kg was fired at…

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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 toad with mass of 280 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

A: When the toad with a mass of 280 g leaps into the air to catch a fly and the toad's jump was at an…

Q: A skydiver (46 kg) is falling at 27 m/s when she pulls her parachute cord. The parachute slows her…

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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: A 75-kg snowboarder has an initial velocity of 5 m/s and slides down a 92-m-long straight incline…

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Q: A hockey puck is hit by a stick and slides off at an initial speed of 0.5 m/s. Assuming that the ice…

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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: The block of mass m = 2 kg is released from the rest on the incline. If 0 = 15°, what is the…

A: mass of block (m) = 2 kg θ = 15 degree t = 2 seconds μs = 0.3μk = 0.2

Q: Papa Smurf (whose mass is 1kg) is sliding at 1.0 m/s over an icy pond that has no friction.  A force…

A: From Newton’s 2nd law, the expression of the force is given as, Here, m and a represent the mass…

Q: A 0.15 kg marble is on a track. It is being held at the top of a hill that is 3 m high. If it is let…

A: Given in question - Mass of the marble (m) = 0.15kg                                  Height of the…

Q: A curious Student drops a 3 g coin from a 34 m high window. What is the velocity of the coin just…

A: Given:-  The mass of the coin  m = 3 g  The height of the window is h = 34 m  Find:-  What is the…

Q: A 2.0 kg block is sliding on a horizontal surface slides to a halt due to friction of magnitude 5.1…

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Q: A 1 kg ball and a 2 kg ball, both the same dimensions, are dropped at the same time from a height of…

A: Acceleration due to gravity is independent from the mass of object so for Both object if we apply…

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 0.4 kg ball is thrown vertically upward with an initial speed of 15 m/s as it leaves the throwers…

A: Given: The mass of the ball is 0.4 kg. The initial velocity of the ball is 15 m/s vertically upward.…

Q: Eric drops a 4.82 kg water balloon that falls a distance of 47.22 m off the top of a building. What…

A: Given: The intial velocity of the water balloon is 0 m/s. The height of the building is 47.22 m. The…

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Q: Somone is standing on a piece of cardboard holding a wire that is attached to a vehicle.  The…

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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,

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Q: The football's initial velocity comp ir resistance and any other noncon

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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.

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A: Given Block slide down at a distance, d=5m inclination angle, θ=370 coefficient of friction between…

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A: Stone has an initial velocity zero. The acceleration due to gravity g is known. Let us consider it…

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 72 fireman slide down a 3.2 m pole by applying a frictional force of 377 N against the pole with…

A: Given , mass of fireman , m = 72 kg Height of pole , h = 3.2m Frictional force , f = 377 N…

Q: A baseball is hit with 200 lbs (889.7 Newtons) of force and given a horizontal velocity of 19 m/s.…

A: Let, the mass of the ball is 1 Kg. In the vertical direction, only force due to gravity is acting on…

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: A 5 kg cart is on a track. It is being held at the top of a hill that is 5 m high. If the bottom of…

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Q: A truck with velocity 33 m/s turned a corner too sharp and lost part of the load. A falling box will…

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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

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.