. An object starting from rest travels 20 m in first 2 s and 160 m in next 4 s. What will be the velocity after 7 sec

. An object starting from rest travels 20 m in first 2 s and 160 m in

1.	. An object starting from rest travels 20 m in first 2 s and 160 m in next 4 s. What will be the velocity after 7 sec
Answer» y=70ms^-1u = 0 m/s; s = 20 mt = 2 s We use the formula s = UT + (1/2)at^2 Substituting the values, we get a = 10 m/s2 At t = 7 seconds v = u + a t , → v = 0 + a t = 10 X 7 → v = 70 m/s

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. An object starting from rest travels 20 m in first 2 s and 160 m in next 4 s. What will be the velocity after 7 sec

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