Question

Lifesaver

v (subscript)f^2-v (subscript)i^2/2a=delta t v(subscript)fi=15.0m/s v(subscript)f=10.0m/s a=-2.0m/s^2 find delta t

Answer 1

\[find \Delta t\]\[V(t)f=(10.0m/s )a=-2.0m/s^{2}\]\[[V(t)f^{2}-V(t)I^{2}]/2a=\Delta tV(t)fI=15.0m/s\]

Answer 2

is it 16.25 seconds....???