A boat of mass 50 kg is floating in the river with 1/2 of its volume inside the water. Calculate the buoyant force acting on the boat. (Take, g = 10 ${{ms}^{2}}$).

Given that, mass of the boat, m = 50 kg

As we know that, when a body floats in river. Its apparent weight is zero.

Therefore, buoyant force = weight of body =mg = 50 x 10 =500

i.e. Buoyant force = 500 N