Question

Q8. The position vector of a particle at time t is given by r = A cos wt 1+ B sin wt , where A and w are constants. Speed of the particle at time tis
O (A)
() Ω
O (B) A + B2
O (C) WA
O (D) 1​

Answer 1

Answer:

Explanation:

The position vector of a particle at time t is given by r = A cos wt 1+ B sin wt , where A and w are constants. Speed of the particle at time tis

B is the a+B2