A 80 kg person is parachuting and experiencing a downward acceleration of 2.3 m/s2. The mass of the parachute is 9.2 kg

parachuting
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#1

A 80 kg person is parachuting and experiencing a downward acceleration of 2.3 m/s2. The mass of the parachute is 9.2 kg. (a) What is the upward force on the open parachute from the air? (b) What is the magnitude of the downward force on the parachute from the person?

Answer:

Answer a=669 N
Answer b if the force is ejerced from the person and weight parachuting =690,16
but if the force is ejerced only for person is 600 N
my english is bad sorry but these are answer