A force F at an angle above the horizontal is used to pull a heavy suitcase of weight mg a distance d along a level floor

True or false: the revolution of the earth creates day and night as it rotates around the sun

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.