The velocity of a particle v at an instant t is given by v=at+bt2. The dimensions of b is
A. [L]
B. [LT-1]
C. [LT-2]
D. [LT-3]
Answer:D
The velocity of a particle v at an instant t is given by v=at+bt2. The dimensions of b is
A. [L] B. [LT-1] C. [LT-2] D. [LT-3]