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An 80 kg person is parachuting and is ex...

An 80 kg person is parachuting and is experiencing a downward acceleration of `"2.8 m s"^(-2)`. The mass of the parachute is 5 kg. If the upward force on the open parachute is `kxx10^(2)N`, then what what is the value of k? `("Take "g=9.8ms^(-2))`

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