What are the factors that affect self-confidence
What are the factors that affect self-confidence
Work energy theorem states that the change in kinetic energy of an object is equal to the net-work done on it by the net force.
&nbps
Derivation:
Let us assume that the body is at rest and the force acting is \(underset{F}{rightarrow}\). This applied force causes a displacement of the body which is given as \(dunderset{s}{rightarrow}\) in the direction of the force.
Then the small amount of work done is given as
dw=\(underset{F}{rightarrow}\).\(dunderset{s}{rightarrow}\)=Fds
From Newton’s second law of motion, we know
F=ma
Where a is acceleration
Therefore,
dw=Mada=Mdv/dt ds
The work done by the force in order to increase the velocity from intial velocity u to final velocity v is given as
\(W=int_{u}^{v}Mvdv=Mint_{u}^{v}vdv\)
=\(Mleft | frac{v^{2}}{2} right |_{u}^{v}\)
W=1/2 Mv2 – 1/2Mu2
&nbps
Hence, work done on the body when the force is applied is equal to the change in its kinetic energy.
Work energy theorem states that the change in kinetic energy of an object is equal to the net-work done on it by the net force.
&nbps
Derivation:
Let us assume that the body is at rest and the force acting is \(underset{F}{rightarrow}\). This applied force causes a displacement of the body which is given as \(dunderset{s}{rightarrow}\) in the direction of the force.
Then the small amount of work done is given as
dw=\(underset{F}{rightarrow}\).\(dunderset{s}{rightarrow}\)=Fds
From Newton’s second law of motion, we know
F=ma
Where a is acceleration
Therefore,
dw=Mada=Mdv/dt ds
The work done by the force in order to increase the velocity from intial velocity u to final velocity v is given as
\(W=int_{u}^{v}Mvdv=Mint_{u}^{v}vdv\)=\(Mleft | frac{v^{2}}{2} right |_{u}^{v}\)
W=1/2 Mv2 – 1/2Mu2
&nbps
Hence, work done on the body when the force is applied is equal to the change in its kinetic energy.
