Special Theory of Relativity Electronics and Communication Engineering (ECE) Notes | EduRev

Electronics and Communication Engineering (ECE) : Special Theory of Relativity Electronics and Communication Engineering (ECE) Notes | EduRev

 Page 1


1 
21 
Page 2


1 
21 
2 
Prof. Shiva Prasad, Department of Physics, IIT Bombay 
Recapitulate 
• We discussed the definition of 
force in relativity. 
• The acceleration, in general, is 
not in the same direction as 
force. 
• We considered two special cases 
when force and acceleration are 
in the same direction. 
Page 3


1 
21 
2 
Prof. Shiva Prasad, Department of Physics, IIT Bombay 
Recapitulate 
• We discussed the definition of 
force in relativity. 
• The acceleration, in general, is 
not in the same direction as 
force. 
• We considered two special cases 
when force and acceleration are 
in the same direction. 
3 
Prof. Shiva Prasad, Department of Physics, IIT Bombay 
Equations  
We found an expression 
relating a constant force and 
the initial and final speed of 
the particle after a given 
time. 
 
22
22
11
o t o o
to
mu mu
Ft
uu
cc
Page 4


1 
21 
2 
Prof. Shiva Prasad, Department of Physics, IIT Bombay 
Recapitulate 
• We discussed the definition of 
force in relativity. 
• The acceleration, in general, is 
not in the same direction as 
force. 
• We considered two special cases 
when force and acceleration are 
in the same direction. 
3 
Prof. Shiva Prasad, Department of Physics, IIT Bombay 
Equations  
We found an expression 
relating a constant force and 
the initial and final speed of 
the particle after a given 
time. 
 
22
22
11
o t o o
to
mu mu
Ft
uu
cc
4 
Prof. Shiva Prasad, Department of Physics, IIT Bombay 
This equation can be 
rewritten in a different 
form to enable us to 
calculate the speed after  
a given time t, when a 
particle is subjected to a 
force F, in one 
dimensional motion. 
Page 5


1 
21 
2 
Prof. Shiva Prasad, Department of Physics, IIT Bombay 
Recapitulate 
• We discussed the definition of 
force in relativity. 
• The acceleration, in general, is 
not in the same direction as 
force. 
• We considered two special cases 
when force and acceleration are 
in the same direction. 
3 
Prof. Shiva Prasad, Department of Physics, IIT Bombay 
Equations  
We found an expression 
relating a constant force and 
the initial and final speed of 
the particle after a given 
time. 
 
22
22
11
o t o o
to
mu mu
Ft
uu
cc
4 
Prof. Shiva Prasad, Department of Physics, IIT Bombay 
This equation can be 
rewritten in a different 
form to enable us to 
calculate the speed after  
a given time t, when a 
particle is subjected to a 
force F, in one 
dimensional motion. 
5 
Prof. Shiva Prasad, Department of Physics, IIT Bombay 
2
2
Let 
1
o
o
t
uo
t
F
A
m
u
A t u
u
c
22
22
11
o t o o
to
mu mu
Ft
uu
cc
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