Question

An Object starting from rest travels 120 m in first 2 sec and 260 m in next 4 sec. What will be the velocity after 6 sec from the start?

Answer 1

Answer:

360m/s

Explanation:

Case1--> s=120m , u=0 , t=2s

s=ut+((1/2)a*t^2

120=(1/2)*a*4

a=60m/s^2

Case 2---> t=6s, u=0, a=60m/s^2

v=u + at

v=6*60

v=360m/s

Answer 2

Explanation:

in the upper answer the case second is not taken in that case acceleration is totally different so I think this question is wrong