A100-kg boulder sits on the top of a 50-meter high cliff. it falls off. how fast is it traveling just before it hits the ground?

a. 31 m/s

b. 490 m/s

c. 98 m/s

d. 245 m/s

Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass

Choose a synonym for the underlined homonym (a word with two or more meanings). i did not expect the boat to rock so much. a. boulder c. astound b. sway d. shock

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p