Calculate the acceleration of Josh riding his bicycle in a straight line that speeds up from 4 m/s to 6 m/s in 5 seconds.

Correct  a = 0.4 m/s²

Explanation:

Given:

Initial velocity V₀ = 4 m/s

Achieved speed after time t    V = 6 m/s

Time interval of movement  t = 5 seconds

This is a uniformly accelerated motion to which the formula applies:

V = V₀ + a · t  ⇒ a · t = V - V₀  ⇒ a = (V - V₀) / t

a = (6 - 4) / 5 = 2 / 5 =  0.4 m/s²

a = 0.4 m/s²

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