A body slides over an inclined plane forming an angle of 4$5^o$ with the horizontal. The distance x travelled by the body in time t is described by the equation x = kt², where k = 1.732. The coefficient of friction between the body and the plane has a value

• A

  $\mathrm{\mu }=0.5$

• B

  $\mathrm{\mu }=1$

• C

  $\mathrm{\mu }=0.25$

• D

  $\mathrm{\mu }=0.75$