141750 A man runs at a speed of \(4 \mathrm{~m} / \mathrm{s}\) to overtake a standing bus. When he is \(6 \mathrm{~m}\) behind the door at \(\mathrm{t}=0\), the bus moves forward and continuous with a constant acceleration of \(1.2 \mathrm{~m} / \mathrm{s}^{2}\). The man reaches the door in time \(t\). Then,
141750 A man runs at a speed of \(4 \mathrm{~m} / \mathrm{s}\) to overtake a standing bus. When he is \(6 \mathrm{~m}\) behind the door at \(\mathrm{t}=0\), the bus moves forward and continuous with a constant acceleration of \(1.2 \mathrm{~m} / \mathrm{s}^{2}\). The man reaches the door in time \(t\). Then,
141750 A man runs at a speed of \(4 \mathrm{~m} / \mathrm{s}\) to overtake a standing bus. When he is \(6 \mathrm{~m}\) behind the door at \(\mathrm{t}=0\), the bus moves forward and continuous with a constant acceleration of \(1.2 \mathrm{~m} / \mathrm{s}^{2}\). The man reaches the door in time \(t\). Then,
141750 A man runs at a speed of \(4 \mathrm{~m} / \mathrm{s}\) to overtake a standing bus. When he is \(6 \mathrm{~m}\) behind the door at \(\mathrm{t}=0\), the bus moves forward and continuous with a constant acceleration of \(1.2 \mathrm{~m} / \mathrm{s}^{2}\). The man reaches the door in time \(t\). Then,