Sarah and her friends the swim team are playing on the high dive. One of Sarah’s friends throws her backpack, containing her swim supplies, into the pool from the high dive platform. The backpack weighs 50 N. When the backpack hits the water, it encounters a 50.0 N upward resistance force. The swim coach, who also happens to be the physics teacher says:
“This is a great opportunity to discuss the forces exerted on Sarah’s backpack!” Several students in the group made comments to the Coach about the backpack. Which student has the correct analysis of the forces and motion of the backpack?
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