A body oscillates with SHM according to the equation (in SI units), \(x= 5\cos\left[2\pi t +\dfrac{\pi}{4}\right].\) At \(t = 1.5 \text{ s},\) acceleration of the body will be:
1. \(140 \text{ cm} / \text{s}^2 \)
2. \(160 \text{ m} / \text{s}^2 \)
3. \(140 \text{ m} / \text{s}^2 \)
4. \(14 \text{ m} / \text{s}^2\)