Multiple Choice
An astronaut on another planet drops a 1-kg rock from rest. The astronaut notices that the rock falls 2 m straight down in 1 s. On this planet, how much does the rock weigh?
A) 1 N
B) 4 N
C) 5 N
D) more than 5 N
Correct Answer:

Verified
Correct Answer:
Verified
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