A 2-kg car moving towards the right at 4 m/s collides head on ...

[Cooldude101]

A 2-kg car moving towards the right at 4 m/s collides head on with an 8 kg car moving towards the left at 2 m/s, and they stick together. After the collision, the velocity of the combined bodies is __________ m/s pointing __________.
 Fill in the blank(s) with correct word

Question 2

Consider a situation where you carry a 20-N box up a flight of stairs, raising its elevation by 5 m.After the dropped box hits the floor, its kinetic energy is converted into ____________.
 Fill in the blank(s) with correct word

[Anna]

Answer to Question 1

0.8, towards the left

Answer to Question 2

internal energy

[Cooldude101]

Excellent

[apple]

Thanks for the timely response, appreciate it