A 3.0 kg particle moves in a circle of radius 2.0 m with an angular momentum of 30.0 kg-m³/s. What is its speed of rotation? a) 5.0 rad/s b) 4.5 rad/s c) 3.0 rad/s d) 2.5 rad/s

Q: Q2: The boat in Fig.2 is traveling at 40km/h. The rope to tow the parasail is 150m long. At the…

A: Given: Initial velocity of boat is 40 km/h Length of the rope to parasail is 150 meters At t=0…

Q: A crate of mass 75 kg is pushed along a floor with a force of 30 N for a distance of 7 m. Calculate…

A: Given data :     Force   =   F    Distance   =   d          To find :            Work done

Q: 13. (II) For the vectors shown in Fig. 3–38, determine (a) B – 2Ã, (b) 2Ã – 3B + 2C. a) - 92.5î -19…

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Q: A weight lifter raises a 963 N weight a vertical distance of 1.87 m. Compute the work done by the…

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Q: How much work is needed to lift a 100 pound weight from 10 feet above ground to the top of a 50 foot…

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Q: Can there be a net force on an object and have no work done to it? Defend your answer.

A: let the net force acting on the object be "F"  and displacement of the object due to this force is…

Q: If the energy stored in the spring when it was stretched .25 m was used to launch a .1kg ball…

A: Given, m=0.1 kg x=0.25 m energy stored in the spring =12kx2 Where k is the spring constant and x is…

Q: To bring a very big ship to a stop,  its engines are typically cut off about 25 kms from port. Why?

A: A very big ship has an enormous large amount of   mass , due to  this   its momentum will be very…

Q: The base vectors of the A axes set are Xa = [1 0 0] ', Ya = [0 1 0]' and Za = [0 0 1] 'and the base…

A: speed of the origin of the B axis set relative to the A axis set be [5 0 0] meters / second.  linear…

Q: A body of mass 2 kg was dropped down from a height. If the KE attained by it is 400 J, find the…

A: Solution:-Given thatmass of body (m)=2 kgKE attained by the mass (KE)=400 J

Q: A crate of mass 65 kg is pushed along a floor with a force of 40 N for a distance of 12.11 m.…

A: Introduction :  In this question we are provided with value of force and distance.with these data we…

Q: What work is done on a level track in bringing the velocity of a train weighing 200 tons from zero…

A: Given data: The weight of the train is W=200 tons. The initial speed is u=0 mi/hr. The final speed…

Q: A crate of mass 78 kg is pushed along a floor with a force of 30 N for a distance of 9 m . Calculate…

A: Mass,m=78 kg. Force, F=30 N. Distance,S=9m.

Q: Find the median from the set of No. (4,10,9,6,15,23,20)

A:

Q: A crate of mass 40 kg is pushed along a floor with a force of 20 N for a distance of 10 m.Calculate…

A: Given data :              Distance    =    d              Force     =   F      To find :…

Q: Why can't vectors be added algebrically?

A: Vector has both magnitude and direction.

Q: A crate of mass 40 kg is pushed along a floor with a force of 120 N for a distance of 26 m.…

A: Given data,  Distance  =  d  Force  =  F        To find ,        Work done

Q: A net force of 22 N accelerates a 9-kg mass over a distance of 20 m. (a) What is the work done by…

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Q: A pair of bullocks exerts a force of 160 N on a plough . The field being ploughed is 18 m long . How…

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Q: 19. Tarzan is hanging on the end of a vine, at point A, over an alligator-infested river. He must…

A: Law of conservation of energy: According to this law, the total energy of an isolated system remains…

Q: A crate of mass 60 kg is pushed along a floor with a force of 18 N for a distance of 3 m. Calculate…

A: Mass ( m ) = 60 kg  Force ( F ) = 18 N  Displacement ( d ) = 3 m

Q: (II) If the speed of a car is increased by 50%, by what factorwill its minimum braking distance be…

A: The relationship formula for the speed and the distance is,

Q: A crate of mass 60 kg is pushed along a floor with a force of 30 N for a distance of 14 m.Calculate…

A: Given: mass (m) = 60kg             Force applied (F) = 30N             Displacement (d) =  14 m To…

Q: (b) Suppose that 2 J of work is needed to stretch a spring from its natural length of 0.15 m to 0.2…

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Q: As you see in Fig.5, a block of mass m = 0.59 kg is supported by a light rope that wraps around a…

A:

Q: ii) The angle between the vectors A = 4.0î + ĵ and B = −2.03 is: 0= =

A: We know that A.B= ABcosθ So we can derive θ from the above equation.

Q: A 20-kg cannonball is fired straight up in the air from the ground and reaches a final height of 125…

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Q: A force of 50 N acts on a body and moves it through a distance of 5 m in the direction of force.…

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Q: A crate of mass 48 kg is pushed along a floor with a force of 20 N for a distance of 8 m. Calculate…

A: Given data :                       Force    =     F                     Distance   =    d         To…

Q: A crate of mass 85 kg is pushed along a floor with a force of 30 N for a distance of 9 m. Calculate…

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Q: A crate of mass 80 kg is pushed along a floor with a force of 30 N for a distance of 10 m. Calculate…

A: GivenMass of the carte (m) = 80 kgForce (F) = 30 NDistance (d) = 10 m