question_answer

A particle is moving in x-y plane. At certain instant of time, the components of its velocity and acceleration are as follows: \[{{v}_{x}}=3m/s,\] \[{{v}_{y}}=4m/s,\]\[{{a}_{x}}=2m/{{s}^{2}}\]and \[{{a}_{y}}=1m/{{s}^{2}}\]. What is the rate of change of speed in \[(m/{{s}^{2}})\] at this moment?  

Answer:

2