A balloon is waiting to take off. As seen in the figure below, the balloon's basket sits on
a platform which rests on the ground. The
balloon is pulling up on the basket, but not
hard enough to lift it off the platform.
balloon
platform
basket
ground
What is the free-body diagram for the plat-
form? Some parallel vectors are offset hori-
zontally for clarity.

Matt is driving down 7th street. he drives 150 meters in 18 seconds. assuming he does not speed up or slow down, what is his speed?

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.

Could someone . i have tried to solve myself but my calculation is off