1.

For the one dimensional motion, described by `x=t-sint`A. `x(t) gt 0` for all t gt 0B. `nu(t) gt 0` for all `t gt 0`C. `a(t) gt 0` for all `t gt 0`D. all of these

Answer» Correct Answer - A
`x = t - sint, v = (dx)/(st) = 1 - cost, a = (dv)/(dt) = sint`
`therefore x(t) gt 0` for all values of `t gt 0` and v(t) can be zero for one value of t, a(t) can zero for one value of t.


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