highest point 2.51 m above the floor; distance 2.28 m horizontally from bottle
The car was moving at a speed of 30.4 m/s (109 km/h)
The final position is 126 km, 13.6 degrees north of west
X and Y components postion: (-0.075, 6.26); velocity (-3.65, -3.775); acceleration (-12.2, 2.3);
magnitude and direction (strictly speaking not asked for) position 6.26 m at an angle of 89.3 degrees from
the x axis in Quadrant II, velocity 5.25 m/s at an angle of 46 degrees from the x axis in Quadrant III, and
acceleration 12.4 m/s2 at an angle of 10.7 degrees in Quadrant II
A. Highest height 309 m, B. 242.5 m, -36 m/s, C. 9.26 s
Player must run 3.73 m/s toward coach
A. Plane's acceleration is -29.7 m/s2, B. 2.25 s, C. 59400 newtons
Tension a: 68.4 Newtons, Tension b: 104 Newtons, Mass 3: 10.6 kg, Mass 2: 6.98 kg
Time to travel 30m horizontally 1.73s; time to return to original height 2.04s. So hits wall first. Angle
between velocity vector and wall 68 degrees.
Due: Oct. 10
Tuesday:
Reviewed one homework problem. Discussed frction, kinetic and static, and introduced
formulas pertaining to friction. Solved problems with frictional forces.
