Author Question: While flying horizontally in an airplane, you notice that a string dangling from the overhead ... (Read 90 times)

geodog55 · **on:** Jul 29, 2018

While flying horizontally in an airplane, you notice that a string dangling from the overhead luggage compartment hangs at rest at 15 away from the vertical toward the front of the plane.

Using this observation, you can conclude that the airplane is
A) moving forward.
B) accelerating forward.
C) not accelerating because the string is at rest.
D) accelerating backward.
E) moving backward.

Question 2

What would be the gravitational force that a planet twice as massive as Earth and having twice Earth's radius exerts on a 59.1-kg astronaut?

A) 580 N
B) 290 N
C) 1160 N
D) 118 N
E) 1200 N