A rock is thrown from the roof of a building, with an initial ...

[vHAUNG6011]

A rock is thrown from the roof of a building, with an initial velocity of 10 m/s at an angle of 30 above the horizontal. The rock is observed to strike the ground 43 m from the base of the building.
 
  What is the height of the building assuming no air resistance?

Question 2

A projectile is shot straight up from the surface of Earth by means of a very powerful cannon and experiences no appreciable air resistance.
 
  If the projectile reaches a height of 35,000 m above Earth's surface, what was the speed of the projectile when it left the cannon? (G = 6.67  10-11 N  m2/kg2, the radius of Earth is 6.38  106 m, and Mearth = 5.97  1024 kg) A) 355 m/s
  B) 505 m/s
  C) 827 m/s
  D) 710 m/s
  E) 906 m/s

[leeeep]

Answer to Question 1

96 m

Answer to Question 2

C

[vHAUNG6011]

Thanks for the timely response, appreciate it

[xiazhe]

Great answer, keep it coming