A particle is moving in the x-y plane. At certain instant of time, the components of its velocity and acceleration are as follows: vx=3ms^−1,vy=4ms^−1,ax=2ms^−2 and ay=1ms^−2. The rate of change of speed at this moment is A particle is moving in the x-y plane. At certain instant of time ax=2ms^−2 and ay=1ms^−2. The rate of [...]