Prepare for NEET Physics Work, Energy, and Power (Work Energy Theorem By Constant Force) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert explanations to apply the work-energy theorem under constant forces.
NEET Questions / Physics / Work, Energy, and Power / Work Energy Theorem By Constant Force
A block of mass 2 kg is pulled along a rough horizontal surface by a constant force of 10 N acting at an angle of 60° with the horizontal. If the block moves 5 m and the coefficient of kinetic friction is 0.2, what is the net work done on the block?
50 J
25 J
14.06 J
10 J
A variable force N acts on a particle, moving it along the x-axis from m to m. What is the change in kinetic energy of the particle during this displacement?
17 J
34 J
68 J
8.5 J
A variable force N acts on a particle of mass 2 kg, displacing it from to m. If the particle starts from rest, what is its final kinetic energy?
9 J
18 J
27 J
54 J
A block of mass m is pushed up a rough inclined plane of angle and coefficient of kinetic friction by a constant horizontal force F. The block moves a distance d along the incline. Which expression gives the net work done on the block?
Fd cos θ - mgd sin θ
Fd(cos θ - μk sin θ) - mgd(sin θ + μk cos θ)
Fd(cos θ + μk sin θ) - mgd sin θ
F cos θ - μk mg cos θ
A particle moves along the x-axis under the influence of a force , where k and b are positive constants. If the particle moves from to , where , what is the work done by the force?
-3ka^2/2 + 3b/(8a^2)
-3ka^2/2 - 3b/(8a^2)
-ka^2 + b/(a^2)
-ka^2/2 + b/(8a^2)
A constant force of 10 N displaces an object by 5 m in the direction of the force. What is the work done by the force?
10 J
50 J
15 J
2 J
A force of 8 N acts on a block, moving it 4 meters in the direction of the force. According to the work-energy theorem, what is the change in the block's kinetic energy?
2 J
4 J
32 J
8 J
If a constant force does 20 J of work to move an object 2 meters, what is the magnitude of the force?
10 N
20 N
40 N
5 N
A constant force of 5 N acts on an object. If the object's kinetic energy increases by 15 J, what is the distance the object moved in the direction of the force?
3 m
5 m
7.5 m
15 m
A force of 25 N acts on a box, displacing it 4 meters. If the force and displacement are in the same direction, what is the work done?
100 J
6.25 J
29 J
21 J
