30. A particle is moving along the \( x \)-axis. The velocity \( v \) of the particle at time \( t \), \( 0 \leq t \leq 10 \), is given by the function whose graph is shown above. At what time \( t \) during the time interval \( 0 \leq t \leq 10 \) is the particle farthest to the right?
