Author Question: For a spacecraft going from the earth toward the sun, at what point will the gravitational forces ... (Read 72 times)

FButt · **on:** Jul 27, 2018

For a spacecraft going from the earth toward the sun, at what point will the gravitational forces due to the sun and the Earth cancel? Earth's mass: me = 5.98 1024 kg sun's mass: ms = 1.99 1030 kg Earth-sun distance: r = 1.50 1011 m

What will be an ideal response?

Question 2

A 100 kg football linebacker moving at 2 m/s tackles head-on an 80 kg halfback running 3 m/s. Neglecting the effects due to digging in of cleats

A) this is a simple example of an elastic collision.
B) the linebacker will drive the halfback backward.
C) neither player will drive the other backward.
D) the halfback will drive the linebacker backward.