A particle is moving in xy-plane .At certain instant the components of its velocity and acceleration
Channel: Doubtnut
Date: 30/08/2020

A particle is moving in xy-plane .At certain instant the components of its velocity and acceleration are as follows `u_(x) = 3m//s,u_(y)=4m//s,a_(x)=2m//s^(2)"and"a_(y)=1m//^(2).` The rate of change of speed at this moment is  `(a) 4.m//s^(2)` `(b) 2,m//s^(2)`  `(c) sqrt3.m//s^(2)`  `(d) sqrt5 .m//s^(2)`.