Two trucks of equal mass behave like rigid bodies. If a head-on collision between the two trucks is assumed to be perfectly elastic, which option BEST describes the post-collision situation? A) The slower trucks reverses direction but maintains the same speed.
B) The trucks exchange their speeds and reverse their direction of motion.
C) Both trucks start to move in the direction of the truck with higher speed.
D) The faster truck slows down to the speed of the slower truck but continues in the same direction.

C) Both trucks start to move in the direction of the truck with higher speed.

Explanation:

C) Both trucks start to move in the direction of the truck with higher speed.

Explanation:

The truck will move in the direction with the greatest momentum. Factors affecting momentum is mass & velocity (speed)

Hope this helps!

a.

explanation:

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.