A Car Is Traveling with a Constant Speed When the Driver

Multiple Choice

A car is traveling with a constant speed when the driver suddenly applies the brakes, causing the car to slow down with a constant acceleration of magnitude 3. . If the car comes to a stop in
A distance of 30.0 m, what was the car's original speed?

A) 10.2 m/s
B) 14.5 m/s
C) 315 m/s
D) 105 m/s
E) 210 m/s