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A small rock moves in water, and the force exerted on it by the water is...

A small rock moves in water, and the force exerted on it by the water is given by equation f=kv
f=kv
. The terminal speed of the rock is measured and found to be 2.2 m/s
m/s
. The rock is projected upward at an initial speed of 5.7 m/s
m/s
You can ignore the buoyancy force on the rock
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