A woman is wearing her seat belt, while driving at 60 km per hour. She finds it necessary to slam on her brakes and slows uniformly to a stop in 1.6 second. What is the average acceleration experienced by her?
Given, u = 60 km/h
= 60 x 5/18 m/s
= 50/3 m/s,
T = 1.6 s, V = 0
Average Acceleration:
a = v – u/t
= -50/ 3 x 1.6
= – 100/ 3 x 3.2
= – 1000/96
= – 10.4 m/s²
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[A] – 10.4 meter per second square