Unformatted text preview: Lecture 9 Andrei Sirenko, NJIT 18 Power
Average Power Units:
Instantaneous Power Sample Problem 7-10: Two constant forces F1 and F2
7acting on box as the box slides rightward across
acting on a box as the box slides rightward across a
frictionless floor. Force F1 is horizontal, with
magnitude 2.0 N, force F2 is angled upward by 60º
to the floor and has a magnitude of 4.0 N. The speed
v of the box at a certain instant is 3.0 m/s.
3.0 a) P=
Lecture 9 ½*50kg*(5m/s)2/1 Andrei Sir...
View Full Document