# Rigid question

A uniform block A of mass 25 kg and length 6m is hinged at C and is supported by a small block B as shown in the figure .a constant force F of magnitude 400 N is applied to block B horizontally.what is the speed of B after it moves 1.5m ? The mass of block B is 2.5 kg and the co-efficient of friction for all the contact surfaces is 0.3

Details and Assumptions

• Use $$\ln\frac{3}{2} =0.41$$
• $$g=10$$ ms$$^{-2}$$
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