In the figure, a 16 000N wrecking ball is pulled back with a horizontal force of
7000w before being swung against the sic
ofā building. What angle does the
wrecking ball make with the vertical wher
it is pulled back?
F
7000 N
16,000N

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j

To a of 4 x hz is 1. 0. mm nm nm