Homework Statement
On August 10, 1972, a large meteorite skipped across the atmosphere above western United States and Canada, much like a stone skipped across water. The accompanying fireball was so bright that it could be seen in the daytime sky (Fig. 7-24). The meteorite's mass was about 4...
A boat can travel at a speed of 3.4 m/s in still water. A river that is 160 m wide has a current that flows 1.3 m/s due West.
a) If the boat points its bow directly across the river, how fast does the boat travel relative to the shore?
3.64 m/s
b) How long will it take to cross...
A rocket is launched at an angle of 57.0° above the horizontal with an initial speed of 96 m/s. It moves for 3.00 s along its initial line of motion with an acceleration of 30.0 m/s^2. At this time its engines fail and the rocket proceeds to move as a free body.
(a) Find the maximum altitude...
Alright I did \Delta X = 7.9(3.06) and I got 24.174 which is correct.
It's amazing how you guys know this stuff, just like right off the top of your head.