Homework Statement
You testify as an "expert witness" in a case involving an accident in which car A slid into the rear of car B, which was stopped at a red light along a road headed down a hill. You find that the slope of the hill is θ = 12.0°, that the cars were separated by distance d =...
Homework Statement
The velocity v of a particle moving in the xy plane is given by v = (6.0t - 4.0t2) i + 6.0 j, with v in meters per second and t (> 0) is in seconds.
(d) When does the speed equal 10 m/s?
Homework Equations
?
The Attempt at a Solution
6-8t=-10
t=2s
That's...
Homework Statement
From t = 0 to t = 5.00 min, a man stands still, and from t = 5.00 min to t = 10.0 min, he walks briskly in a straight line at a constant speed of 1.9 m/s.
Homework Equations
(a) What is his average velocity vavg in the interval 2.000 min to 7.60 min? ___m/s
(b)...