- Joined
- Jun 25, 2012
- Messages
- 136
- Reaction score
- 8
Okay, so here's a problem from a practice test:
"Suppose that a ball is thrown vertically upward from earth with velocity v, and returns to its original height in a time, t. If the value of g where reduced to g/6, then t would:
a) incr by 6
b) incr by 6^.5
c) decr by 6
d decr by 6^.5
Okay, so I narrowed it down to a & b, and I WAS going to pick a (the correct answer), but then of course I had to doubt myself and pick b.
I chose a at first using t = v/g. but then I switch to b, because I used h = .5at^2.
Now I'm confused. Both equations are valid for time, but why was the t = v/g correct for this problem?
"Suppose that a ball is thrown vertically upward from earth with velocity v, and returns to its original height in a time, t. If the value of g where reduced to g/6, then t would:
a) incr by 6
b) incr by 6^.5
c) decr by 6
d decr by 6^.5
Okay, so I narrowed it down to a & b, and I WAS going to pick a (the correct answer), but then of course I had to doubt myself and pick b.
I chose a at first using t = v/g. but then I switch to b, because I used h = .5at^2.
Now I'm confused. Both equations are valid for time, but why was the t = v/g correct for this problem?