Boat 1 goes directly across a stream a distance L and back taking ...

[mspears3]

Boat 1 goes directly across a stream a distance L and back taking a time t1 . Boat 2 goes down stream a distance L and back taking a time t2 . If both boats had the same speed relative to the water, which of the following statements is true?
 a. t2 > t1
  b. t2 < t1
  c. t2 = t1
  d. t2 = 2t1
  e. t2 = 0.5t1

Question 2

A 1 000-kg automobile moving with a speed of 24 m/s collides with a 500-kg car initially at rest. If the two stick together, what is the velocity (in m/s) of the two cars after the collision relative to an automobile moving in the same direction at 15 m/s?
 a. 14
  b. 16
  c. 24
  d. 48
  e. 1.0

[kescobar@64]

Answer to Question 1

A

Answer to Question 2

E

[mspears3]

Excellent

[tandmlomax84]

Gracias!