An object of mass 7.39 kg is moving with an initial kinetic energy 394 Joules. If the object undergoes a displacement of 3.17 m in the same direction of an external force of 19.7 Newtons, its final speed in m/s is:

Q: Bonny Blair of the United States set a world record in speed skating when she skated 5.00 x 10^2 m…

A: Kinetic energy is defined as energy due to virtue of its motion. Kinetic energy =12mv2 GIVEN : Mass…

Q: On an essentially frictionless, horizontal ice rink, a skater moving at 6.0 m/sm/s encounters a…

A: Given initial speed= 6m/s Final speed = 2.88m/s Friction force = 0.22Mg = 2.2M Change in kinetic…

Q: During a long-distance race, a runner weighing 60.6 kg travels at a speed of 3.10 meters per second.…

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Q: A car of weight 140 kg. To what height should it be raised so that potential energy is 4220 J? Take…

A: Introduction : In this question we are provided with value of potential energy , mass and…

Q: A cart is loaded with a rock and pulled at constant speed along an inclined plane to the height of a…

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Q: A car of wheat weight 700 kg.To what height should it be raised so that potential energy is 8860 J?…

A: Given data:  Mass of car (m) = 700 kg Potential energy (PE) = 8860 J Acceleration due to gravity (g)…

Q: s of 4.15kg. Its initial velocity is 14.3m/s and its final is 7.43m/s. Force A has a work of +747J,…

A: Given:-  A ball has a mass of m = 4.15kg.   Its initial velocity is 14.3m/s and its final is…

Q: A 0.600 kg particle has a speed of 2.00 m/s at point A and kinetic energy of 7.50 J at point B. What…

A:

Q: A shopper in a supermarket pushes a trolley with a force of 30N directed at an angle of 25° downward…

A: Given : F = 30 N θ = 25° d = 40 m

Q: A toad with mass of 188 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

A: Given: Toad's mass, m=188 g=0.188 kg Toad's jumping angle w.r.t horizontal, θ=35° Initial velocity,…

Q: A block of mass 4.2 kg is placed against a horizontal spring of constant of 939 N/m and pushed so…

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Q: worker applies a force of 190 N, directed 22° below the horizontal. As the crate moves 3.3 m, How…

A: Given :-  F = 190 N  S = 3.3 m m = 52 kg  directed 22° below the horizontal

Q: A 5.0 kg object is moving forward with an applied force of 10.0 N right, displacing 5.0 m right. The…

A: Total work done due to force of gravity on the object is ZERO. NO WORK IS DONE BY FORCE OF GRAVITY…

Q: When an 78.8-kg adult uses a spiral staircase to climb to the second floor of his house, his…

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Q: An object is subject to a force F = (571i − 101j) N such that 10,925 J of work is performed on the…

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Q: If you walk 2.0 m horizontally forward at a constant velocity carrying a 20-N object, what is the…

A: Given Data : The distance travelled horizontally is given as d = 2 m The weight of the object is…

Q: An applied force of 14.6 N acts on a 2.50 kg mass that is initially at rest. Over a distance of 2.36…

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Q: A uniform force of (3i + j) newton acts on a particle of mass 2 kg. Hence the particle is displaced…

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Q: . A car of mass 900 kg is initially travelling at 50 km/h. If the speed increases so that its…

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Q: A toad with mass of 117 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

A: Given data The mass of the toad is m=117 g The angle of projection is θ=26o The initial velocity is,…

Q: You stretch a spring a distance of 9.1 cm from its equilibrium length with a force of 2.97 N. How…

A: Given Data: The initial stretch in the spring at a distance xi is, xi=9.1 cm The applied force is,…

Q: Initially at rest, a block with a mass of 6 kg above a frictionless surface is pulled to the right…

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Q: A toad with mass of 180 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

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Q: An accelerating object of mass m=20 kg is fired with an initial speed v;=7 m/s at a starting point.…

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Q: A cart is loaded with a rock and pulled at constant speed along an inclined plane to the height of a…

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Q: A 33.00 kg block starts from rest at the top of a 23.0 m long 30.0° incline. Its kinetic energy at…

A: Working formula Work done by friction=Potential energy of the block at the top - Kinetic energy of…

Q: An applied force of 14.4 N acts on a 2.50 kg mass that is initially at rest. Over a distance of 2.35…

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Q: A 65.70 kg baseball player begins his slide into second base when moving at a speed of 6.090 m/s.…

A: Mass of the player, m = 65.7 kg Initial speed, u = 6.09 m/s Final speed, v = 0 m/s   From the…

Q: A student wearing frictionless in line skates on a horizontal surface is pushed by a friend with a…

A: The given data are: F=45 NKf=352 JKi=0 J Here, Ki denotes the initial kinetic energy, Kf denotes the…

Q: A bullet of weight 160 kg To what height should it be raised so that potential energy is 2250 J?…

A: The potential energy of an object of mass M when it is raised to a height h, U = Mgh

Q: When a car of mass 1167 kg accelerates from 10.0m / s to a certain final speed, 4.00x10 ^ 5J of work…

A: Given Mass m = 1167 kg Initial velocity u = 10 m/s Work done = 4 × 105 J

Q: A leaky bucket, which weighs 5 N empty and initially has 40 N worth of water in it, is lifted into…

A: Given

Q: A bag of wheat weighs 200 kg. To what height should it be raised so that potential energy is 9800 J?…

A: Given data:  Mass (m) = 200 kg Potential energy (U) = 9800 J Acceleration due to gravity (g) = 9.8…

Q: A bag of wheat weighs 170 kg. To what height should it be raised so that potential energy is 8614 J?…

A: Given data :                    Acceleration due to gravity    =    g                    Potential…

Q: The aircraft carrier USS George Washington has mass 1.0 ×108kg. When its engines are developing…

A: Let Pout be the total power output of the engines, P is the power used to push the ship through the…

Q: Compute for the gravitational potential energy of a 60.0 kg mountaineer who is 500 m above the…

A: Given data: Mass (m) = 60.0 kg Height (h) = 500 m Required: Gravitational potential energy

Q: A force F = (10 + 0.5 x) N acts on a particle in the x-direction. The work done by the force in…

A: Given: The force on the particle is. F=10+0.5x N…

Q: A cart of mass 2 kg moves with a velocity of 0.5 m/s along the negative x-direction. The kinetic…

A: The mass of the cart, m=2 kg   The velocity of the cart along the negative x-direction, v=-0.5 m/s

Q: as a 2kg object moves from (2i+5j)m to (6i-2j)m, the constant resultant force acting on it is equal…

A: Given that the mass of object is m=2.0kgThe object moves from S1=2i+5j to S2=6i-2jThe force on the…

Q: A 4 kg particle has an initial velocity of (6i-3j) m/s. Some time later, its velocity changes to…

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Q: A 65g Frisbee is thrown from a point 1.20 m above the ground with a speed of 12.00 m/s. When it has…

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Q: A bag of wheat weight 430 kg. To what height should it be raised so that potential energy is 9150 J…

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Q: A bag of wheat weight 130 kg. To what height should it be raised so that potential energy is 150 J ?…

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Q: A toad with mass of 190 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

A: given , mass of the toad , m = 190 g =0.190 Kg Angle with respect to the horizontal , θ = 37∘…

Q: A car of weight 120 kg. To what height should it be raised so that potential energy is 2320 J? Take…

A: Given data :- weight of car m = 120 kg potential energy U = 2320 J g = 9.8 m/s2

Q: Find the work done in joules by gravity as an object of the mass m=6 kg is raised up at constant…

A: Here, we are given Mass of object, m = 6 Kg Initial height of the object from the ground, h1 = 32 m…

Q: A student wearing frictionless roller skates on a horizontal surface is pushed by a friend with a…

A: Given: Initial velocity of student is 0 m/s. Force applied is 52 N. Final kinetic energy is 345 J.…