A cyclist accelerates from 0 m/s to 10 m/s in 3 seconds. What is his acceleration?

3.33 m/s^2

Explanation:

V = final velocity ( 10m/s^2 )

U = Initial velocity ( 0m/s^2 )

t = Time taken ( 3 s )

approximately = 3.33 m/s^2

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.