A 5.00-kg ball is hanging from a long but very light flexible ...

[colton]

A 5.00-kg ball is hanging from a long but very light flexible wire when it is struck by a 1.50-kg stone traveling horizontally to the right at 12.0 m/s.
 
  The stone rebounds to the left with a speed of 8.50 m/s, and the ball swings to a maximum height h above its original level. The value of h is closest to
  A) 3.69 m. B) 0.0563 m. C) 1.93 m. D) 1.10 m. E) 2.20 m.

Question 2

A construction worker pulls a box of tools on a smooth horizontal floor with a force of 100 N in a direction of 37.0 above the horizontal. The mass of the box and the tools is 40.0 kg.
 
  (a) Draw a free-body diagram for the box.
  (b) Calculate the acceleration of the box.
  (c) How hard does the floor push up on the box?

[Kjones0604]

Answer to Question 1

C

Answer to Question 2

(a) The box is acted on by the force of gravity which points downward toward the center of the earth. The normal force is directed toward the box perpendicular to the surface of the floor. The pulling force is directed away from the box at an angle 37.0 degrees above the horizontal.
(b) 2.00 m/s2
(c) 332 N