Asolid sphere and a hollow sphere are released at the same time from the top of the same inclined plane. each object has mass m and radius r. they both roll without slipping down the incline. which of the following statements about their motion must be true? the solid sphere will reach the bottom first.

i'm thinking more like energy

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.