Which object is accelerating
A) a bicycle traveling at 10 miles per hour
B) a car turning sharply around a corner
C) an airplane flying at a speed of 520 miles per hour
D) a vase at rest on a table
It would be B because A and C are staying at the constant speed of 10 and 520. A vase at rest on a table is not moving whatsoever, and a car turning sharply around a corner gains speed. I hope this helps