- #1
Phan
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Homework Statement
A person in a hot air balloon that is rising accidentally drops a can of paint from the balloon. The balloon is moving up at a constant velocity of 4m/s, the distance to the ground is at the moment 4m. Find the time it takes for the can to drop to the ground.
Homework Equations
d=v1*t+(1/2)at^2
v2^2=v1^2 + 2ad
a = (v2-v1)/t
The Attempt at a Solution
To try to solve the equation, I first started off by using the first formula and rearranging to solve for (t) while leaving v1 as 0, and using 9.8m/s (grav) for (a). However, I quickly realized that v1 is actually 4m/s, so I quickly changed my solution.
After I solved for (t) again with the new value for v1, I got a really small number. This seemed wrong, so I tried instead the second equation to solve for v2, then I input that into equation 3, but it was also a small number, I got 0.58. My friend got 1.4s instead, and I am pretty sure he is right.
Can anyone point me in the right direction? I didn't review physics 11 yet, and I am struggling to recall the procedure for the initial motion questions. Thanks for any help.