Gen. Physics Mir. Gias You throw ball straight up with, an initial velocity of 1

Question

Gen. Physics Mir. Gias You throw ball straight up with, an initial velocity of 150ma letting eo at 15m above the ground. It passes a tree branch on the way up at a height of 7.00m. How much additional time will pass before the ball passes the tree on the way back down 1 Draw a diagram of the problem 120pts, artistry does NOT count) List all of the information you het including assurned correct answer, total 20pts,-7pts for each wrong guess) 2. (not statedHwmatiot. Sots for each 3. What kinematics equationls) do you plian to use to solve this problem? (30pts) 4. At what time does it pass the branch the first time (on the way up)? (20pts) Answer. 5. At what time does it pass the branch the second time (on the way down)? (20pts) Answer: 6. What is the answer to the question asked in the problem? (10pts) Answer:

Explanation / Answer

2)xo = 1.5 m

vo = 15 m/s

a = -9.8 m/s^2

xf = 7 m

3)the kinematics equation I will use to solve this problem are:

H= ut + 0.5*at^2

and v^2 = u^2+2*a*S

4)let the time taken be t.

using H=ut+0.5at^2,

7-1.5 = 15*t - 9.81*0.5*t^2

or t = 0.42 s

5)using the above equation again, t=2.63 s

6)Time = 2.63 - 0.42

=2.21 s

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