A 13,500 kg dumptruck travels on route 322 at a velocity of 4.5m/s. it collided and couples with a 25,000 kg tractor trailor stopped at a red light. what is the momentum of the tractor trailer before the collision

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?