A 20. kg cart traveling east with a speed of 6.0 m/s collides with a 30. kg cart traveling west. If both carts come to rest after the collision, what was the speed of the westbound cart before the collision?

when the use of electricity burdens the fuse and miniarure circuit beakers and there is a possibility of a fuse then they automatically cut off the electricity supply to your homes and after you fix the problem u jzt switch it on and it continues the supply of electricity to ur homes

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we need to know the time interval during which the force acts. impulse of force = momentum change

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.