Two cars being remotely controlled crash into each other on a frictionless track. Car A (700 kg) and Car B (2,250 kg) crash into each other, and combine into one unit. Before the collision, Car A is moving at 13.5 m/s, and Car B is stationary. What is the speed of the two cars after the collision? A. B. C. D.

a.

explanation:

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.

answeralert drivers who drift off the road;