(adsbygoogle = window.adsbygoogle || []).push({}); Question on "Motion along a straight line"

[edit: finally got the first one already so I erased it ...]

Hey guys, I really appreciate this forum and all that are taking the time to help out. I wish to be part of this community and help out others in the future as well. I had a question on Motion along a straight line.

An object is dropped from a height H above the ground. This free falling object requires 0.952 s to travel the last 46m before hitting the ground. The acceleration of grav. is 9.8 m/s^2. From what height H above the ground did the object fall. (answer in m).

I tried this a couple of times by getting the velocity using d = rt and setting vf = 0 and g = 9.8 and then using the d = vit + 1/2at^2 but again, prob. not the right approach. I think I'm just losing my head with all this physics because I got the harder problems right in this set of problems. If someone could help me on this, I would really appreciate it. I've been trying to get it for an hour now but am still unable to. The thing is, I have to input these answers online, so even if I'm off by a little, I don't know and I get points taken off for each wrong attempt, so I'm trying my best to get them right the first time. Well, thanks in advance guys. Hope to hear from you all.

Any suggestions would be appreciated; I just need some help on as to how to tackle this problem ...

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: 2 questions on Motion along a straight line

**Physics Forums | Science Articles, Homework Help, Discussion**