A Car Travels Along a Highway with a Velocity of 24

Multiple Choice

A car travels along a highway with a velocity of 24 m/s, west. The car exits the highway; and 4.0 s later, its instantaneous velocity is 16 m/s, 45° north of west. What is the magnitude of the average acceleration of the car during the four-second interval?

A) 2.4 m/s²
B) 4.5 m/s²
C) 1.2 m/s²
D) 11 m/s²
E) 17 m/s²