Question

can anyone say how can i improve myself in Mechanics?
i am facing a huge problem to understand the problems basically..

Answer 1

u mean?

Answer 2

hello,wat's ur question?

Answer 3

To improve yourself in mechanics you must start from the simplest physics textbook you can find, so that you will understand the basic concept of motion, force, laws of motion. you could also ask me specific questions

Answer 4

Conservation of Energy, the Work-Energy
Theorem and Projectile Motion
The Mechanical Energy of an object consists of two types of energy,
Potential (U) and Kinetic (K). For an object at a height H, U = mgH
where m is the mass and g is the acceleration due to gravity (9.81
m/s2). K =
!
1
2 mv2 where v is the speed of the object.
If a non-conservative force eg, friction, acts in the system, then the
final energy is less than initial energy and the difference is equal to
the work done by that force (Wnc).
!
E f " Ei =Wnc
!
Kf +Uf " Ki +Ui ( ) =Wnc
.
Work done by a force is the scalar product of force and displacement.
Work may be positive or negative.
!
W = F • d = Fdcos"
where θ is the angle between the force
!
F and the displacement
!
d.
In the case of work done by friction, θ = 180o, giving
!
Wf = " f kd where
!
fk is the force of friction.
The work-kinetic energy theorem states
!
Kf = Ki " fkd +Wother
.
If the other work is done by gravity, then:
!
Kf = Ki " fkd +Wgravity
or
!
Kf = Ki " fkd + mg Hi " Hf ( ).

Answer 5

just apply the formulas,that a simple part in physics,though the lab looks rough :(

Answer 6

read the book " Fundamental Laws Of Mechanics By I.E. Irodov "

Answer 7

http://ocw.mit.edu/courses/physics/8-01-physics-i-classical-mechanics-fall-1999/video-lectures/lecture-2/
this video can change ur outlook