A) \[\frac{4.9}{\sqrt{2}}\]
B) \[4.9\sqrt{2}\]
C) \[19.6\sqrt{2}\]
D) 4.9
Correct Answer: A
Solution :
\[a=g(\sin \theta -\mu \cos \theta )=9.8(\sin 4{{5}^{o}}-0.5\cos {{45}^{o}})\] \[=\frac{4.9}{\sqrt{2}}\ m/{{\sec }^{2}}\]
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