Question

A 2. 0-kilogram cart moving due east at 6. 0 meters per second collides with a 3. 0-kilogram cart moving due west. The carts stick together and come to rest after the collision. What was the initial speed of the 3. 0-kilogram cart, to the nearest m/s?.

Answer 1

Below

Step-by-step explanation:

Momentum = mv

Law of conservation of momentum :

Momentum BEFORE collision = Momentum AFTER collision

2 * 6 - 3 * x = (2+3) * 0

12 - 3x = 0

x = 4 m/s west