Evaluate each of the following situations and determine if an unbalanced force is present. choose all of the examples of unbalanced forces at work

worth 30 points, asap, will mark brainliest!
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group of answer choices

a spacecraft moves in one direction at a constant speed.

a cyclist coasts downhill going faster and faster

a tennis racket hits a tennis ball and the ball bounces off.

a car turns right without slowing down.

i think the answer would be b

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

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.