Question

The dog sled will experience positive acceleration if:
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1 point
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they add bags to the sled.
they add a dog to the sled.
they add a person to the sled.
all of the above

Answer 1

all of the above

Answer 2

How does a spacecraft leave the surface of the Earth?
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1 point
The spacecraft produced an upward force of thrust that was equal to the downward force of gravity.
The spacecraft produced an upward force of thrust that was greater than the downward force of gravity.
The spacecraft produced a downward force of thrust that was equal to the downward force of gravity.
The spacecraft produced a downward force of thrust that was less than the downward force of gravity.

Answer 3

The spacecraft produced an upward force of thrust that was greater than the downward force of gravity.