10. Train A moves at a constant speed of 4 m/s as it passes train B, which is stopped on a parallel track. 4 sec. after

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10 Train A Moves At A Constant Speed Of 4 M S As It Passes Train B Which Is Stopped On A Parallel Track 4 Sec After 1 (37.99 KiB) Viewed 52 times

10. Train A moves at a constant speed of 4 m/s as it passes train B, which is stopped on a parallel track. 4 sec. after train A passes train B, train B begins a constant acceleration of a = 6 m/s². How long before train B catches up to train A? 11. A student stands on top of a 300 m tall cliff and throws a rock up at 24 m/s. How long does it take to reach the ground below the cliff? 12. The velocity of a particle moving along the x axis is given by Vx-at-br where a = 20 What are the units of a? b=2.0 m/s 13. The velocity of a particle moving along the x axis is given by Vx=at-bt' where a = 20,b=2.0 m/s What is it velocity at t = 3 s 14. The velocity of a particle moving along the x axis is given by What is it acceleration at t-3 s Vx=3-2 m/s t EC. Suppose the position equation for a moving object is given by s(t)=-3 t² +61 +5 where s is measured in meters and t is measured in seconds. Find the maximum positive displacement. (Hint find when the velocity is zero)