Question

x=t^2+4t+3 is this dimensionally correct or not .and the reason. ​

Answer 1

Answer:

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Position is given as   x=a+bt²=8.5+2.5t²

Position at t=2 s,  x²=8.5+2.5(2)²=18.5 m

Position at t=4 s,   x¹=8.5+2.5(4)²=48.5 m

Displacement  S=x2−x¹=48.5−18.5=30 m

Time taken  t=4−2=2 s

Average velocity  Vavg=tS=230=15 m/s

Answer 2

Explanation:

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