Dynamics 12.198 - If the end of the cable A is pulled down with a speed of 5m/s, determine the speed

Question: If the end of the cable A is pulled down with a speed of 5m/s, determine the speed at which block B rises. Problem 12-198 from: Engineering Mechanics: Dynamics, 14th edition Russell C. Hibbeler Thank you guys for watching. Please let me know if you have any comments or suggestions and also if you have any other problem you would like to go over with.