How do the !Kung Bushmen teach their children not to be violent?

By not reacting to tantrums like this, children of the !Kung tribe learn that adults will not react. The adults will not act differently toward the child who is acting out. Having a tantrum and acting aggressively will not get the adult’s attention or sympathy. The children learn that they will get no reward, such as attention, from their parents for acting out. They learn that aggression and fighting will not get them anywhere. Draper’s time with the !Kung also showed her that children who are raised in this way learn to be more cooperative rather than competitive. The children of the tribe grew up in mixed-age groups. By not being surrounded by many kids their own age, they felt less desire to compete. The older children were pleasant and calm when dealing with the younger kids. Children of all ages experienced working together as they grew up. They enjoyed accomplishing different tasks as a group. 

Explanation:

an obstruction

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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