A skydiver is falling at 50 m/s when they open their parachute. The parachute slows them at a rate of 4 m/s^2 until they reach terminal velocity of 3 m/s. How long does it take to reach terminal velocity?

Question

Physics

Jax Huerta

1 December, 12:39

A skydiver is falling at 50 m/s when they open their parachute. The parachute slows them at a rate of 4 m/s^2 until they reach terminal velocity of 3 m/s. How long does it take to reach terminal velocity?

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Answers (2)

Know the Answer?

Santiago Ashley · Answer 1

Answer:11.75 seconds

Explanation:

Answer:

Explanation:

Parameters:

Final velocity V1 = 3m/s

Initial Velocity V2 = 50m/s

Acceleration = 4m/s2

Time = ?

V1 = V2 + at

V1 - V2 = at

Therefore t = V1 - V2 / a

t = 3-50 / (-4)

t = - 47 / (-4)

t = 11.75sec

It'll take 11.75 seconds to reach terminal velocity of 3m/s.

Chris Keller · Answer 2

15.67 seconds

Explanation:

Using first equation of Motion

Final Velocity = Initial Velocity + (Acceleration * Time)

v = u + at

v=3

u=50

a = - 4 (negative acceleration or deceleration)

3 = 50 + (-4 * t)

-47/-4 = t

Time = 15.67 seconds