Utter confusion regarding distance covered during acceleration in free fall.


by AakashPandita
Tags: acceleration, confusion, covered, distance, fall, free, utter
AakashPandita
AakashPandita is offline
#1
Nov16-12, 11:14 AM
AakashPandita's Avatar
P: 133
Let there be an obj. which is made to fall from a certain height in a gravitaitonal field.
where

a= 10 metre per second squared

Say it falls for 1 second.

v(final velocity)= 10 metre per second.

How much distance does it cover in that 1 second?

distance = speed x time = avg. speed x 1second = 10 m

This means that 10 m is covered during that 1 second.

But how could that be when the velocity had not reached 10 metre per second?
Phys.Org News Partner Physics news on Phys.org
A 'quantum leap' in encryption technology
Using antineutrinos to monitor nuclear reactors
Bake your own droplet lens
rcgldr
rcgldr is offline
#2
Nov16-12, 11:42 AM
HW Helper
P: 6,931
If acceleration is constant, and if the starting speed is 0 meters per second and the final speed is 10 meters per second, then what is the average speed?
AakashPandita
AakashPandita is offline
#3
Nov17-12, 09:54 AM
AakashPandita's Avatar
P: 133
thank you. i understood my mistake.
But now i have another doubt.

A body falls freely for 10 metres from rest.

what is the final velocity?

i found it is sqrt200.
am i right?

i found sqrt200.
am i right?

rcgldr
rcgldr is offline
#4
Nov17-12, 02:13 PM
HW Helper
P: 6,931

Utter confusion regarding distance covered during acceleration in free fall.


Quote Quote by AakashPandita View Post
A body falls freely for 10 metres from rest. what is the final velocity? i found it is sqrt200.
Correct. You can also write this as 10 x sqrt(2) or ~14.1421. I'm not sure what form of answer your class would prefer.


Register to reply

Related Discussions
Distance covered in free fall Classical Physics 2
distance covered under variable acceleration Classical Physics 2
Free fall: total distance expressed in terms of distance fallen in nth second Introductory Physics Homework 6
Utter Confusion on Projectile Motion Introductory Physics Homework 3
Totally Lost (Free Fall Distance) Introductory Physics Homework 2