141437 The position of an object moving along \(\mathrm{X}\)-axis is given by \(x=\alpha+\beta t^{2}\), where \(\alpha\) and \(\beta\) are constants with appropriate dimensions and \(t\) is time in seconds. The average velocity between \(t\) \(=2 \mathrm{~s}\) and \(4 \mathrm{~s}\) is \(12 \mathrm{~m} / \mathrm{s}\). If \(\alpha=8 \mathrm{~m}\), then the value of \(\beta\) is
141437 The position of an object moving along \(\mathrm{X}\)-axis is given by \(x=\alpha+\beta t^{2}\), where \(\alpha\) and \(\beta\) are constants with appropriate dimensions and \(t\) is time in seconds. The average velocity between \(t\) \(=2 \mathrm{~s}\) and \(4 \mathrm{~s}\) is \(12 \mathrm{~m} / \mathrm{s}\). If \(\alpha=8 \mathrm{~m}\), then the value of \(\beta\) is
141437 The position of an object moving along \(\mathrm{X}\)-axis is given by \(x=\alpha+\beta t^{2}\), where \(\alpha\) and \(\beta\) are constants with appropriate dimensions and \(t\) is time in seconds. The average velocity between \(t\) \(=2 \mathrm{~s}\) and \(4 \mathrm{~s}\) is \(12 \mathrm{~m} / \mathrm{s}\). If \(\alpha=8 \mathrm{~m}\), then the value of \(\beta\) is
141437 The position of an object moving along \(\mathrm{X}\)-axis is given by \(x=\alpha+\beta t^{2}\), where \(\alpha\) and \(\beta\) are constants with appropriate dimensions and \(t\) is time in seconds. The average velocity between \(t\) \(=2 \mathrm{~s}\) and \(4 \mathrm{~s}\) is \(12 \mathrm{~m} / \mathrm{s}\). If \(\alpha=8 \mathrm{~m}\), then the value of \(\beta\) is