acceleration = change in velocity /change in time
convert 40km to meter then divide it with 5
Acceleration in m/s² is 2.2 m/s²
Initial velocity of car = 40 km/h
Time taken to stop = 5 s
Acceleration in m/s²
Initial velocity of car = 40(1000) / [(60)(60)]
Initial velocity of car = 40,000 / 3600
Initial velocity of car = 11.11 m/s
v = u + at
0 = 11.11 + (a)(5)
5a = -11.11
a = 2.2 m/s²
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