A vehicle at 16 m/s brakes uniformly at 4 m/s² until rest. What is its braking distance?

A) 16 m

B) 48 m

C) 64 m

D) 32 m

Answer: D

Explanation: Use braking distance = initial speed² ÷ (2 × deceleration) for the stated idealized conditions. Substitution gives 16² ÷ (2 × 4) = 32 m.