Solving a Downward Motion Problem: Velocity of an Object

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SUMMARY

The discussion focuses on calculating the final velocity of an object in free fall after 2.2 seconds, given a total distance of 12 meters. The initial velocity (vi) is correctly identified as 0 m/s since the object starts from rest. Using the kinematic equation for uniformly accelerated motion, the final velocity (vf) can be calculated using the formula vf = vi + at, where 'a' is the acceleration due to gravity (approximately 9.81 m/s²). The participant seeks clarification on the correct application of these principles in solving the problem.

PREREQUISITES
  • Understanding of kinematic equations in physics
  • Knowledge of acceleration due to gravity (9.81 m/s²)
  • Ability to manipulate algebraic equations
  • Familiarity with the concept of initial and final velocity
NEXT STEPS
  • Study the kinematic equations, particularly vf = vi + at
  • Learn how to derive distance traveled in free fall using d = vi*t + 0.5*a*t²
  • Explore real-world applications of free fall in physics
  • Practice solving various problems involving projectile motion
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High school students, physics enthusiasts, and anyone seeking to understand the principles of motion and velocity in free fall scenarios.

Alime
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Hi I am new to Pf and I am a hs student

I just want to ask if i were given a problem:

a. what is the velocity of an object falling in 2.2s and the total distance is 12m.

what vi should i use is it 0 or the other velocity that i would get if i will solve for the whole downward motion problem?
 
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Welcome to PF. Could you please state the question exactly as it is give to you?
 
Its in my quiz so i don't have a copy =(

but as far as i could remember i could solve the vf of the falling object using vi as 0 because it is the vi when an object has reached its maximum height.

the problem is if the time is 2.2s considering 12m as the distance from the objects maximum height to the ground what is the velocity of the object and the distance on 2.2s =( sorry for an incomplete info =(
 

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