bhargavsahab

One summer day a group of students were jumping from a railroad bridge into the Snohomish River. They stepped off the bridge when they jumped, and they hit the water 1.5 seconds later. How high was the bridge?

5.0 m

8.0 m

9.5 m

11 m

An inextensible rope passing over a smooth pulley has two blocks of mass 20 kg and 30 kg attached to its two ends. The mass of the pulley is 10kg and radius of gyration 0.3 m. Determine the tension on the rope and the acceleration of the masses.