With an average acceleration of - 1.3 m/s2, how long will it take a cyclist to bring a bicycle with an initial speed of 13.0 m/s to a complete stop?

Answer in units of s.

13.0:1.69

= seconds for the cyclist to completely stop

first solve - 1.3 to the second power or - 1.3 squared by multiplying - 1.3 by itself

((-1.3) * (-1.3) = 1.69)

then divide 13 by 1.69

we are dividing because we are solving a deceleration equation and by multiplying 2 negatives the sum will always equal a positive and if we multiplied 13 by 1.69 we would turn this into an accelleration equation.

so divide 13 by 1.69

(13:1.69=7.6923076923)