At 2:00 p.m., a car's speedometer reads 30 mi/h. At 2:10 p.m., it reads 50 mi/h. Show that at some time between 2:00 and 2:10 the acceleration is exactly 120mi/h ^2 Which of the following statements accurately describes the situation
a) The car's acceleration is constant between 2:00 and 2:10.
b) The car's acceleration is zero at some point between 2:00 and 2:10.
c) The car's acceleration is decreasing during this time interval.
d) The car's acceleration is exactly 120mi/h ^2 at some point between 2:00 and 2:10.