Question

Q.24. State Parallelogram law of addition of vectors. Write an expression for the magnitude and direction of
resultant of two vectors inclined to each other. When is the resultant maximum and minimum?
What is centipetal acceleration? Derive expression for it?

Answer 1

$\large\bf{\underline\red{Good \: Afternoon♡}}$

State Parallelogram law of addition of vectors. Write an expression for the magnitude and direction of resultant of two vectors inclined to each other.

➜ The addition of two vector A and vector B is resultant vector R And R = A2 + B2+ 2AB CosΘ1/2And tan β = B SinΘ/ A + B CosΘ Where Θ is the angle between vector A and vector B And β is the angle which vector R makes with the direction of vector A. State triangle law of vectors addition.

What is centipetal acceleration? Derive expression for it?

➜ rate of change of tangential velocity is called as the centripetal acceleration.

$a_{c} = \frac{ {v}^{2} }{r}$