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​

Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction

Which best term to describe a chemical reaction that absorbs energy from its surroundings? a.thermal conductor b.thermal insulator c.endothermic d.exothermic

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?