Calculate the Average Force a Bumper Would Have to Exert

Multiple Choice

Calculate the average force a bumper would have to exert to bring a 1200-kg car to rest in 15 cm when the car had an initial speed of 2.0 m/s (about 4.5 mph) .

A) 1.8 × 10⁴ N
B) 1.6 × 10⁴ N
C) 5.4 × 10⁴ N
D) 6.5 × 10⁵ N
E) 3.2 × 10⁴ N