It's harder to stop or turn a moving supertanker than a small ...

[lbcchick]

It's harder to stop or turn a moving supertanker than a small speedboat because
 
  A) the speed boat has a larger velocity.
  B) the supertanker has more force.
  C) the supertanker has a larger momentum.
  D) the supertanker has a larger velocity.
  E) the speedboat has more force.

Question 2

An instrument is thrown upward with a speed of 15 m/s on the surface of planet X where the acceleration due to gravity is 2.5 m/s2 and there is no atmosphere. How long does it take for the instrument to return to where it was thrown?
 
  A) 12 s B) 6.0 s C) 10 s D) 8.0 s

[DHRUVSHAH]

Answer to Question 1

C

Answer to Question 2

A