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A man was driving his car suddenly, he saw a cat infront of his car he apply the break which produced an acceleration of 6m/s in a direction opposite to that of motion still his car took 2second to stop can you tell how much distance the car travelled during this time |
a = - 6m/s2 ,
t = 2s, S = ?, v=0, v = u + at
i.e., 0 = u + (-6m/s2 ) × 2s i.e., u = 12m/s v2 = u2
+ 2aS i.e., 0 = u2 + 2 (-6m/s2 ) S =144m2/s2
+ ( -12m/s2 ) × S i.e., 12m/s2 × S = 144m2/s2 S = 144m2/s2 ÷ 12m/s2
= 12m Therefore the distance travelled = 12m |