Maddylane111idn
Answered

Get the most out of your questions with IDNLearn.com's extensive resources. Our platform is designed to provide accurate and comprehensive answers to any questions you may have.

Amelia is riding the Giant Drop at Great America. If she free falls for 3.45 seconds, what
will be her final velocity and displacement?
0 33.8m/s & -58.3m
33.8m/s & 58.3m
34m/s & 58m
33.8m/s & 58.3m

Amelia Is Riding The Giant Drop At Great America If She Free Falls For 345 Seconds What Will Be Her Final Velocity And Displacement 0 338ms Amp 583m 338ms Amp 5 class=

Sagot :

Supernovaidn

Answer:

-33.8 m/s & -58.3 m

Explanation:

We have two known variables from the start: acceleration and time. Since Amelia is in free-fall, the acceleration is due to gravity (g = 9.8 m/s²). We want to find her final velocity and displacement after 3.45 seconds.

Let's start by finding displacement assuming her final velocity is -33.8 m/s.

Using this kinematic equation:

  • Δx = vt - 1/2at²

Substitute the known variables into the equation. Assuming the downwards direction is negative:

  • Δx = (-33.8)(3.45) - 1/2(-9.8)(3.45)²
  • Δx = -116.61 + 58.32225
  • Δx = -58.28775

If Amelia's final velocity is -33.8 m/s, then her displacement is -58.3 m.

This eliminates the second and fourth choice, because the displacement would not match up with her final velocity.

The third choice does not make sense because if her final velocity was negative, her displacement would not be positive.

Therefore, the correct answer is choice A: -33.8 m/s & -58.3 m.

We appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. Your questions deserve precise answers. Thank you for visiting IDNLearn.com, and see you again soon for more helpful information.