n asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 4.8× 104 kg, and the force causes its speed to change from 7700 to 5600m/s. (a) What is the work done by the force? (b) If the asteroid slows down over a distance of 1.4× 106 m determine the magnitude of the force

Q: A large cruise ship of mass 6.20 ✕ 107 kg has a speed of 12.2 m/s at some instant. (a) What is the…

A: Write the variable with the given values.

Q: An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and…

A:

Q: A spring and block are in the arrangement of the figure. When the block is pulled out tox - +5.0 cm,…

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Q: A 2.5 kg object undergoes a displacement Ar=3.0 ml +3.5 mĵ-2.0 m k along a straight line. During the…

A:

Q: A force F = 5i - 3j is applied on a box that experiences a displacement Δr = 10î. a) Find the work…

A: We will use formula of work done that is dot product of force and displacement.W= F.∆rWe know,…

Q: A constant force of magnitude 115 N acts on a particle that moves from A = (9i + 3j) m to B = (9i +…

A: The displacement vector (s) from point A to B will be given as, Let the force vector (F) is given…

Q: An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and…

A: Mass of an asteroid = 5.5Initial speed of asteroid = 7000 m/sFinal speed of asteroid = 5500…

Q: he figure below shows three forces applied to a 5.00 kg trunk that moves leftward by 3.00 m ver a…

A:

Q: A large cruise ship of mass 6.00 ✕ 107 kg has a speed of 12.6 m/s at some instant. (a) What is the…

A: The mass of a ship is, m=6×107 kg The speed of the ship is, v=12.6 m/s (a) The kinetic energy of the…

Q: A 313 kg crate hangs from the end of a rope of length L = 10.6 m. You push horizontally on the crate…

A: According to the given condition,  we have to hold the crate in the final situation, hence F ( force…

Q: Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.2×106 N, one an…

A:

Q: A man pushes a 8 kg object a distance of 5.0 m upward along a frictionless slope that makes an angle…

A:

Q: A large cruise ship of mass 6.10 x 107 kg has a speed of 11.8 m/s at some instant. (a) What is the…

A: Given: The mass of ship is m=6.10×107 kg. The speed of the ship is v=11.8 ms. The displacement of…

Q: A child on a sled is initially at rest on an icy horizontal surface. The sled is pushed until it…

A:

Q: A child on a sled is initially at rest on an icy horizontal surface. The sled is pushed until it…

A:

Q: A cord is used to vertically lower an initially stationary block of mass M = 20 kg at a constant…

A: mass, m  = 20 kg  downward acceleration, a = g/4  distance, d = 1.5 m

Q: A 2.5 kg object undergoes a displacement Ar = 3.0 m î + 3.5 mĵ - 2.0 m ✩ along a straight line.…

A: Given: The mass of the object is 2.5 kg. The displacement of the object is 3i+3.5j-2k m. The force…

Q: forces act, one of which is known to be constant in time:  F1 = (5 N)î + (7 N)ĵ.  As a result, the…

A: Work done by the force is given as  W = F.r r = displacement vector

Q: A crate of mass 9.4 kg is pulled up a rough incline with an initial speed of 1.52 m/s. The pulling…

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Q: force F = (4 î − 5 ĵ) N acts on a particle that undergoes a displacement Δr = (2 î + ĵ) m. Find the…

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Q: A particle moves along a straight path through displacement d= (8 m)iˆ + cjˆ while force F = (2 N)iˆ…

A:

Q: An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and…

A: We are given mass of asteroid. We are also given initial and final speed of asteroid. We first find…

Q: A large cruise ship of mass 6.00 x 10? kg has a speed of 12.8 m/s at some instant. (a) What is the…

A: a) Let's use the kinetic energy relation in terms of mass and velocity. Ek=12mv2=12×(6.00×107…

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A:

Q: A large cruise ship of mass 6.60 ✕ 107 kg has a speed of 12.8 m/s at some instant. (a) What is the…

A: a) we know that  Kinetic energy = 0.5 mV^2 Substituting values we get  KE = 5.4 x 109 J

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Q: A large cruise ship of mass 6.30 x 107 kg has a speed of 10.2 m/s at some instant. (a) What is the…

A:

Q: An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and…

A: Work done can be defined as the change in kinetic energy. Now for the first part of problem, we know…

Q: An object with mass 5.5 kg is sliding to the right while a roughly constant force of magnitude 16…

A:

Q: One boat tows another boat by means of a tow line, which is under a constant tension of 465 N. The…

A: Given data: Tension force (F) = 465 N Velocity (v) = 4.60 m/s Time (t) = 1.10 min Required: The work…

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A:

Q: A large cruise ship of mass 6.60 ✕ 107 kg has a speed of 10.6 m/s at some instant. (a) What is the…

A: mass, m = 6.6 ✕ 107 kg speed, v =  10.6 m/s displacement, s = 2.6 km = 2600 m

Q: If the force has a magnitude FP = 20 N and makes an angle of 30° to the ground. Calculate the work…

A: Given : Fp = 20 N θ = 30° d = 100 m

Q: An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and…

A: (given)       Mass of an asteroid = 4.5×104 kg Initial speed of asteroid = 7400 m/s  Final speed of…

Q: A 51.6 kg sled coasts down a hill, starting from rest. The hill is inclined at an angle of 17.4…

A: Recall W=FdcosθHere angle θ between normal force and displacement is 900 so cos90=0

Q: A 0.25 slug (3.6 kg) object begins moving at 46 mph (20.6 m/s). A force slows it down to 37 mph…

A: Mass of the object is m = 3.6 kg Initial speed of the object is u = 20.6 m/s Final speed of the…

Q: A large cruise ship of mass 6.80 ✕ 107 kg has a speed of 11.6 m/s at some instant.   (a) What is the…

A: a)Kinetic energy is,

Q: The driver of a 1750 kg car, initially traveling at 10.6 m/s applies the brakes, bringing the car to…

A:

Q: A box m = 85 kg is being pulled by a constant force F = 150 N at an angle of θ= 25 degrees. The…

A: Given data *The mass of the box is m = 85 kg *The angle is θ= 25 degrees *The block moves a distance…

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.