Thebrightredfiretruc Thebrightredfiretruc

29-10-2020
Physics

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- A 300 kg box of supplies is dropped from a plane and has a parachute attached, if it accelerates down
at 2m/s? what resistive force does the parachute supply?

Respuesta :

MathPhys MathPhys

29-10-2020

Answer:

2340 N

Explanation:

There are two forces on the box. Weight force pulling down and resistive force pushing up.

Sum of forces in the y direction:

∑F = ma

F − mg = ma

F = mg + ma

F = m (g + a)

F = (300 kg) (9.8 m/s² + (-2 m/s²))

F = 2340 N

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