Why are stream beds slowest inside the bend?

Stream beds are slowest inside the bend due to the phenomenon of centrifugal force, which causes water to flow faster along the outer edge of the bend. As the water moves around the curve, it erodes the outer bank and deposits sediment on the inner bank, where the flow velocity is lower. This reduced velocity inside the bend allows sediment to accumulate, creating a point bar. Consequently, the inner bend experiences slower water flow compared to the outer bend.