Suppose an astronaut landed on a planet where g = 19.6 m>s2. Compared to earth, would it be easier, harder, or just as easy for her to walk around? Would it be easier, harder, or just as easy for her to catch a ball that is moving horizontally at 12 m>s? (Assume that the astronaut’s spacesuit is a lightweight model that doesn’t impede her movements in any way.)

Q: A 1,959-kg car starts from rest at the top of a driveway 7.26 m long that is sloped at an angle of…

A: Given data: The mass, m=1959 kg The distance is d = 7.26 m The angle is θ=21° The force is F=2338 N…

Q: On planet #4, you fire a projectile from the ground at an initial speed of 52.2 m/s at an angle of…

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Q: of 10 the relation between the hiegt h and the square of the horizantal range D2 in projec…

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Q: The shot put world record for women stands at 22.63 m (Natalya Lisovskaya, 1987). Assuming that the…

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Q: An interplanetary model rocket club is visiting planet X, which has a local gravitational…

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Q: 1. Lindsey Vonn, a famous American skier, navigates an Alpine slope. She starts from rest at a…

A: Given:initial height, Hinitial velocity, v' = 0 m/slaunch angle, θ = 45omaximum hieght in air,…

Q: An adventurous archeologist (m = 84.5 kg) tries to cross a river by swinging from a vine. The vine…

A: Given data: Mass (m) = 84.5 kgThe length of the Vine (L)= 10 mThe speed at the bottom swing (V) =…

Q: 4.3. Someone drops a rock from a bridge. ou can neglect air friction as you answer the following:…

A: using,       for t= 0.5 s        for t = 1.0 s         for t = 2.0 s

Q: A projectile is fired vertically with an initial velocity of 210 m/s. Calculate the maximum altitude…

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Q: Everyone knows the earth is pulled toward the Sun by the gravitational force between the Sun (M = 2…

A: Given  Mass of sun, Ms = 2*1030 kg  Mass of earth, me = 6*1024 kg  Distance between them , D =…

Q: It has been determined that a force over 200 N can injure the hand. What is the shortest period of…

A: The objective of this question is to find the shortest period of time it will take to stop a 2 kg…

Q: Apollo 14 astronaut Alan B. Shepard Jr. used an improvised six-iron to strike two golf balls while…

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Q: A roller-coaster car has a mass of 504 kg when fully loaded with passengers. The path of the coaster…

A: Given,m = 504 kgr1 = 10.0 mr2 = 15.0 mvA = 19.8 ms

Q: A roller-coaster car has a mass of 502 kg when fully loaded with passengers. The path of the coaster…

A: Concept: Here in this question, we have to determine the force exerted by the track on the car at…

Q: On planet #4, you fire a projectile from the ground at an initial speed of 29.7 m/s at an angle of…

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Q: An interplanetary model rocket club is visiting planet X, which has a local gravitational…

A: The three equations of motion for constant acceleration are- 1) v=u+at2) s=ut+12at23)v2=u2+2as…

Q: In the Projectile experiment, the projectile was fired horizontally with an initial velocity (Vo)…

A: This question based on Motion in a plane topic. Slope of any graph is the ratio of change in the…

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: Let's say, you went to Planet B. You took out a 100-g ball, released it from rest from a height of…

A: In the question it is given that the Mass of the ball m=100g=0.1kg initial height of the ball h=10m…

Q: At what altitude above Earth's surface would the gravitational acceleration be 3.5 m/s??

A: Given: Gravitational acceleration, a = 3.5 m/s2.   To Find: The altitude at which the Gravitational…

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: 21. Find the gravitational acceleration at this highest point. This would be the initial downward…

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Q: On planet #2, you launch a projectile straight up from the ground at a speed of 58.3 m/s. The…

A: Given,InitialSpeed of the projectile (v)= 58.3 m/sMaximum Height reached by the projectile (H)= 29.2…

Q: An electron is ejected horizontally at a speed of 1.5 x 10^6 m/s (the green v in the diagram) from…

A: Speed of ejected electron v=1.5×106 m/s Screen distance d=35 cm =0.35 m

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: The 300-kg mine car is hoisted up a 20° incline using the cable and motor M. For a short time, the…

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Q: A 0.15 kg baseball is thrown horizontally (parallel to the ground) from a height of 2 m with an…

A: UH=25 m/sUv=0 m/sR=UHt18=25×tt=1825t=0.72 s

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 Leonard Kicked а 0:50 ко ball off the rooftop of a building that is 81 m tall. He oriented the…

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Q: Q2A Rocket was fired at an angle 60° above the surface of the earth; hit a wall away 10m and the…

A: SOlution: as given that angle = 60 degree wall distance = 10 m hit at height = 15 m

Q: A space shuttle is in orbit about the earth at an altitude where the acceleration due to gravity is…

A: Given: The acceleration due to gravity is 8.7 m/s2. The radius of the earth is 6.4x106 m.

Q: You are working part-time for the GT Sports Media Complex, editing video for the women’s softball…

A: An impulse is a large force acting on an object in a small interval of time. It is given by the…

Q: If I shot an arrow straight up into the air, it would leave my bow traveling at a rate of 140 feet…

A: GivenInitial velocity (u) = 140 m/sequation of height h(t) = 140 t - 16t2

Q: On Mars, a ball is rolling from a ground to a hill, and we know the height of the hill, Z, is 10 m,…

A: The total energy of any object consists of its kinetic energy and its potential energy.  Kinetic…

Q: A planet orbiting a distant star has radius 3.54×106 m. The escape speed for an object launched from…

A: Radius, r = 3.54×106 mEscape velocity, v = 7.15×103 m/sAcceleration due to gravity, g = ?

Q: A certain string just breaks when it is under 25 N of tension. A boy uses this string to whirl a 2…

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Q: While an elevator of mass 812 kg moves downward, the tension in the supporting cable is a constant…

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Q: You are trying to escape a hoard of zombies and must make an elevator to get down a cliff as fast as…

A: vmax = 10 m/s h = 25 m acceleration (a) = 2 ms2m2 = 100 kg

Q: An adventurous archeologist (m = 85.5 kg) tries to cross a river by swinging from a vine. The vine…

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Q: You drag your 30 kg suitcase 1200 m thru the Chicago airport at essentially constant velocity 2.0…

A: Mass of suitcase, m = 30 kg Velocity, v = 2.0 m/s Force applied in the upward direction, F = 90 N…

Q: On planet #4, you fire a projectile from the ground at an initial speed of 27.7 m/s at an angle of…

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Q: A bird flying at 45 m/s, 100 m above sea level, drops an acorn of 1 kg upon his unsuspecting victims…

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Q: You are playing a game and you push a cart to give it in. speed. The cart starts at the bottom…

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Central Force

Central force is the force that acts along the center of mass of one body to the center of mass of another body. Its direction from or away from a point on a body to another is called the center of the force. Such forces include gravitational force between two massive objects or electrostatic forces between two charged particles. So from atoms to planets, the central forces play an important role in shaping our daily lives. One of the remarkable features of central forces is that they are conservative, i.e. the total energy of a central force system can always be expressed as a gradient of a potential energy function.