Author Question: A boulder is dropped onto mud and plows into it a certain distance. If it hits with three times as ... (Read 90 times)

littleanan · **on:** Jul 29, 2018

A boulder is dropped onto mud and plows into it a certain distance. If it hits with three times as much speed, the distance it plows into the mud will likely be

A) the same distance.
B) twice as deep.
C) three times as deep.
D) more than three times as deep.

Question 2

Car A is traveling at 22.0 m/s and car B at 29.0 m/s. Car A is 300 m behind car B when the driver of car A accelerates his car with a uniform forward acceleration of 2.40 m/s2.

How long after car A begins to accelerate does it take car A to overtake car B?
A) 12.6 s
B) 316 s
C) 5.50 s
D) 19.0 s
E) Car A never overtakes car B.