Recent content by Star Forger

Ok. I thought I did this correctly, however when I entered my answer of 28.6 it said that it was incorrect. I used d = vi*t + .5*a*t^2, where vi = 24, t = 2.04, and a = -9.8. Do you know where I went wrong in my calculations?

Thank you so much! I've just got one more question: Since we are considering the vertical direction, acceleration due to gravity is still -9.8, not +9.8, correct?

Ok, I got the time. Now is there a specific equation I should use? I'm guessing it's just a variation of one of the Kinematic Equations?

Homework Statement A ball thrown horizontally at 24 m/s travels a horizontal distance of 49 m before hitting the ground. From what height was the ball thrown? Homework Equations The Attempt at a Solution I'm not sure how to start this. Could someone please help?

Thank you, that made a lot of sense and I calculated part A correct. How would I calculate part B though? What does speed as seen by the other mean?

Homework Statement Ships A and B leave port together. For the next two hours, ship A travels at 35 mph in a direction 20° west of north while the ship B travels 10° east of north at 40 mph. (a) What is the distance between the two ships two hours after they depart (in miles)? (b)...

It's an online problem that checks itself when you put in the answer. It's telling me that my answer of -72 degrees is wrong and I'm not sure why. Also, it wants it in degrees specifically.

Homework Statement Suppose vector C = vector A + vector B where vector A has components vector A x = 4, vector A y = 2 and vector B has components vector B x = -3, vector B y = -5. (a) What are the x- and y- components of vector C ? I've solved this to figure out that x = 1 and y = -3 for C...