17. a 4kg object is tied to the end of a cord and whirled in a horizontal circle of radius 6m at 3
hz. determine
a. the velocity of the object
b. the acceleration of the object
c. the centripetal force or tension in the string.

Steelhead trout migrate up stream to spawn.occasionally they need to leap up small waterfalls to continue their journey. fortunately, steelhead are remarkable jumpers, capable of leaving the water at a speed of 8.0 m/s. a. what is the maximum height a steelhead trout can jump? b.leaving the water at 8.0 m/s, the trout lands on top of the water fall 1.8 m high. how long was it in the air?