A force acting on a particle is conservative if (a) its work equals the change in the kinetic energy of the particle (b) it obeys Newton's second law (c) it obeys Newton's third law (d) its work depends on the end points of the motion, not the path between (e) it is not a frictional force 1.
Q: A person pushes a 14.0-kg shopping cart at a constant velocity for a distance of 17.2 m on a flat…
A:
Q: An 8.0 kg sled is initially at rest on a horizontal road. The coefficient of kinetic friction…
A:
Q: A 2.33 kg cart moving along a horizontal track in the positive x-direction has a changing force…
A: Given: Fmax=6.17N, x=27.9cm, m=2.33kg The work done by a force is equal to the area under the…
Q: An object with a mass of 4 kg is initially at rest on a horizontal floor. It is then pushed in a…
A: Given: The mass of the object is 4 kg. The initial speed of the object is 0 m/s. The applied force…
Q: A block with a mass of 6.2 kg is being pushed along a surface over a period of 15 seconds. The…
A: Given data: The mass is m=6.2 kg. The time for the external work is required is t=6 sec to 15 sec.
Q: A 60.7-kg skier coasts up a snow-covered hill that makes an angle of 23.7 ° with the horizontal. The…
A:
Q: What effect do external forces like an applied force, friction force, or drag force have? O They…
A: Any external force acting on the system acts in such a way that the total mechanical energy of the…
Q: A man pushed a box weighing 50.0kg between 2 points (a and b) 15.0m apart. The box passes a point…
A:
Q: A factory worker pushes a 30.9 kg crate a distance of 4.0 m along a level floor at constant velocity…
A:
Q: Awater-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle…
A: We have, Mass, m = 81 Kg Initial speed u = 6.5 m/s Final speed, v = 10.1 m/s
Q: Current Attempt in Progress A person pushes a 18.8-kg shopping cart at a constant velocity for a…
A:
Q: A 19.1 kg block is dragged over a rough, horizontal surface by a constant force of 174 N acting at…
A: The work done(W) by any force (F) on a body to move it by a displacement s, is given as, W = F→.s→ W…
Q: A box of canned goods, contents have a total mass of 4.5 kg, is pushed 2 m along the floor by a…
A:
Q: A factory worker moves a 23.0 kg crate a distance of 5.00 m along a level floor at constant velocity…
A: Mass of crate "m "= 23kg . Distance travel "d'= 5m . co efficient of kinetic friction "uk"= 0.300.
Q: A constant force is applied to an object of mass m standing on a horizontal ground at an angle of θ…
A: I) The angle of application depends on θ. Work done depends on the angle between the direction of…
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: A block is at rest on a horizontal frictionless table. At t = 0, two perpendicular horizontal forces…
A:
Q: A 32-kg block is pulled along the ground for a distance of 4.9 m by a 57 N force at an angle of 21…
A: d) normal force N = mg - Fsin21° = (32×9.8)-(57×Sin21°) N = 293.17 N Now friction force f = ukN…
Q: An object with mass 5.5 kg is sliding to the right while a roughly constant force of magnitude 16…
A:
Q: A person pushes a 20.9-kg shopping cart at a constant velocity for a distance of 21.0 m on a flat…
A:
Q: At an accident scene on a level road, investigators measure a car’s skid mark to be 35 m long. The…
A: Given information: The distance through which skidding occurred (d) = 35 m The coefficient of…
Q: A box that is initially in motion and of mass m = 10.0 kg is pushed across the fl distance d = 7.00…
A: Given:- The mass of the block m = 10 kg The distance d = 7.0 m The applied force F = 40 N at the…
Q: An Amazon package (2 kg) starts from rest, then begins to slide down a 4 m tall ramp that is…
A: Given,Mass of the Amazon package (m): 2 kgHeight of the ramp (h): 4 mInclined angle of the ramp ():…
Q: A force can do no work on a body, yet the body can move under accelerated motion. a) True b) False
A: True
Q: a. (i) Give an example of an object that has three forces acting on it, and (1) accelerates, (2)…
A: (i)Consider a box of mass m being pushed horizontally over a flat surface, as shown in the figure.…
Q: A 1.8 kg block is initially at rest on a horizontal frictionless surface when a horizontal force in…
A:
Q: A man does 4,730 J of work in the process of pushing his 2.30 × 10³ kg truck from rest to a speed of…
A: Given Work done = W = 4730 J Mass of truck = m = 2.30 × 103 kg Initial velocity of truck = u = 0…
Q: A car is parked on a hill. The gravitational force on the car is 9.31 x 103 N straight downward, and…
A:
Q: A cord is used to vertically lower an initially stationary block of mass M = 8.5 kg at a constant…
A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…
Q: As a segment of an workout regiment to toughen their pectoral muscles, a man stretches a spring…
A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…
Q: The kinetic energy of a 5.0 kg object is initially 35 J. It is then subjected to a constant force so…
A:
Q: A 7.80 g bullet is initially moving at 650 m/s just before it penetrates a tree trunk to a depth of…
A: a. Magnitude of the average frictional force = 3.50 x 10⁴ N b. Time elapsed = 0.000145s or…
Q: An elevator suspended by cables ascends, with constant speed, during a certain time interval. The…
A:
Q: A 325 N force is pulling on an 85.0 kg refrigerator as it slides across a horizontal floor. The…
A: The free body diagram of the refrigerator is shown below: Part (a)Recall that the work done by a…
Q: The crate of mass m= 31 kg is at rest at A on the theta=7o incline. The coefficients of static and…
A: Given,
Q: Suppose a box of mass 5 kg is initially at rest on a frictionless horizontal surface. A constant…
A: a.Given mass = 5 kglet F1 = 10N and F2 = 7NHence a1=F1/m=10/5=2m/s2,a2=F2/m=7/5=1.4m/s2t = 4 sNow…
Q: Do the following situations result in positive work, negative work, or zero work? Force is…
A:
Q: A block of mass 2.6 kg is pushed 4.1 m along a frictionless horizontal table by a constant 21 N…
A: Since you have asked question with multiple sub-parts in a single request, we would be answering…
Q: 1. The figure shows three forces applied to a trunk that moves leftward by 2.54m over a frictionless…
A: The work done by a constant force is given by W=F⇀.d⇀=FdcosθF=Forced=displacementθ=angle between F…
Q: A block of mass m = 2.00 kg is pushed a distance d = 7.80 m along a frictionless, horizontal table…
A: a)Work done applied force is,
Q: A 32-kg block is pulled along the ground for a distance of 4.9 m by a 57 N force at an angle of 21…
A: a) work done by applied force = 57×4.9×Cos21° = 260.75 J
Q: explain how the principle of conservation of energy applies to a man sliding from rest down a…
A: Conservation of Energy We know the simple definition of Conservation of Energy, which stated that…
Q: A man does 4,570 J of work in the process of pushing his 2.40 103 kg truck from rest to a speed of…
A: The mass of the truck is 2.4x103 kg. The work done is 4570 J. The initial speed of the truck is 0…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images