A particle moves parallel to the x-axis. The force on the particle F(x) has a po
ID: 1292310 • Letter: A
Question
A particle moves parallel to the x-axis. The force on the particle F(x) has a potential energy function U(x) = ax^3 , where a is a constant. The force F(x) must be
-ax^2
-3ax^2
ax^4 /4
3ax^2
f you could exert one horsepower (746 W) while lifting a 100 kg barbell 2 meters vertically at constant velocity, how much time would the lift take?
0.026 s
1.5 s
2000 s
2.6 s
0.27 s
A car is traveling at speed v relative to the road. The axle of each wheel is moving at the speed v relative to the road, as shown. Choose the image in the answer grid below that displays the velocities of points on the wheel as seen by someone at rest relative to the road. Note: the car travels to the right, and points at rest are labeled 0. Velocity vectors are attached to the wheel at the point where that velocity applies.
Explanation / Answer
-3ax^2
2.6
top left
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.