Ezy velocity questions Please help me im desperate

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Homework Help Overview

The discussion revolves around a physics problem involving the motion of an object falling from a height of 20 meters and another object launched horizontally from the same height. The subject area is kinematics, specifically focusing on free fall and projectile motion.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to calculate the time it takes for an object to fall and questions the correctness of their approach. Some participants challenge the validity of the calculations and suggest writing down relevant equations. Others emphasize the distinction between uniform and non-uniform motion in free fall.

Discussion Status

The discussion is active, with participants providing feedback on the original poster's attempts. There is a focus on clarifying the relevant equations and understanding the nature of motion involved in the problem. Multiple interpretations of the problem are being explored, particularly regarding the assumptions made about velocity.

Contextual Notes

Participants are discussing the need for specific equations related to kinematics and are questioning the assumptions made about the motion of the falling object. There is an indication that the original poster may not have all the necessary information or understanding to solve the problem correctly.

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Ezy velocity questions! Please help me // I am desperate!

Homework Statement



a)How long does it take an object to fall from a height of 20 m to reach the ground?

b)if an object is launched horizontally from a height of 20 m with a velocity of 2/m/s where will it hit the ground?

Homework Equations



we can use the velocity /a cceraltion forumulas

The Attempt at a Solution



is part a correct?? i think 20/ 9.8 m/s because its falling vertically which = 2.04 seconds

but part b I am not sure?
 
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The first part is wrong.

Write down the relevant equations.
 


rl.bhat said:
The first part is wrong.

Write down the relevant equations.

The relevant equation will be okay the equation for velocity

velocity= distance / time

we have been given the distance which is 20 m, and were trying to find time , ??
 


It is true only the velocity is uniform. In a freely falling body the velocity is not constant.
Go through the other kinematic equation for accelerating bodies.
 

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