A package of mass 50 kg is dropped from a helicopter and experiences a drag force of 120 N due to air resistance. Find the resultant force and use it to calculate the acceleration of the package during the fall. Take the acceleration due to gravity as g = 9.81 m s-2 and give your answer in m s-2 to 1 decimal place.
Answer: Answer m s-2
Fw = mass x g = 50 kg x 9.81 m s-2 = 490.5 N
Fw = 490.5n Fdrag = 120n
Resultant force = 490.5n - 120n = 370.5n
acceleration = | force | = | 370.5 | m s-2 = 7.41m s-2 |
mass | 50 |
to 1 decimal place = 7.4m s-2
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