A car is moving on straight away at the speed of 72 km per hour and stop in 5 seconds after the brakes applied find the acceleration and plot the graph of speed versus time and using the graph find the the distance covered by car after brakes applied
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Given,
Initial velocity (u) = 72km/hr = 20m/sec
Final velocity (v) = 0
Time = 5sec
To find:-
Accleration and distance
We know that, v - u = at
0 - 20 = a×5
20 = 5a
a = 20/5
= 4m/s^2
By applying, S = ut+1/2at^2
= 20×5+1/2×4×25
= 150m.
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