Question

Which of the following equations are dimensionally correct? F=ma x=1/2at^3 e=1/2mv e=max v=fxlm

Answer 1

Answer: F=ma

Step-by-step explanation:

Among the given equations there is only one correct, we can know this with the dimension analysis of the units:

`F=m.a`

This is the equation that represents Newton's second law, where the force
`F` has unit of Newtons (
`1N=1kg(m)/(s^(2))`). In addition we have the mass (
`m`) in kilograms (
`kg`) and the acceleration (
`a`) in (
`m/s^(2)`).