2. A 6.0 kg body moving at a speed of 4.0 m/s collides with a body twice its weight and moving at half its speed along the same direction. After the collision, the 6.0 kg body moves in the opposite direction with a speed of 2.0 m/s. Find
the final velocity of the heavier body [A] 3.0 m/s [B] 36.0 m/s [C] 5.0 m/s [D] 12.0 m/s​

Aferris wheel is a vertical, circular amusement ride with radius 9 m. riders sit on seats that swivel to remain horizontal. the ferris wheel rotates at a constant rate, going around once in 9 s. consider a rider whose mass is 56 kg. at the bottom of the ride, what is the perpendicular component of the rate of change of the rider's momentum? at the bottom of the ride, what is the vector force exerted by the seat on the rider?

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and