A block is placed on an inclined plane whose angle `theta` can be varied as shown. Given `mu_(0)=3//4` and `mu_(k)=1//2`. The angle at which block starts moving and minimum acceleration of the block once it starts moving is A. `37^(@),2m//s^(2)`B. `53^(@),4m//s^(2)`C. `37^(@),4m//s^(2)`D. `53^(@),2m//s^(2)`

A block is placed on an inclined plane whose angle `theta` can be vari

1.	A block is placed on an inclined plane whose angle `theta` can be varied as shown. Given `mu_(0)=3//4` and `mu_(k)=1//2`. The angle at which block starts moving and minimum acceleration of the block once it starts moving is A. `37^(@),2m//s^(2)`B. `53^(@),4m//s^(2)`C. `37^(@),4m//s^(2)`D. `53^(@),2m//s^(2)`
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