A block placed on an inclined plane making an angle 17^(@) with the horizontal slides down without any acceleration. What is theacceleration of the block if the inclimation is increased to 30^(@) ?

A block placed on an inclined plane making an angle 17^(@) with the ho

1.	A block placed on an inclined plane making an angle 17^(@) with the horizontal slides down without any acceleration. What is theacceleration of the block if the inclimation is increased to 30^(@) ?
Answer» SOLUTION :`a=mg(sintheta-mu_(K)COSTHETA)=0`, `mu_(k)tantheta=tan17=0.3`. When `theta=30`, `a=g(sintheta-mu_(k)costheta)=2.35m//s^(2)`