Question

Rita's bike starts from rest and accelerates at 2.0m/s2. Where will she be relative to her starting point after 7 seconds? What
is her velocity after 2s and 7s?

Answer 1

Answer:

She will be at 49m from her starting point in 7s

Explanation:

V = AT    2s V = 2*2 = 4m/s    7s V = = 2*7 = 14 m/s

D = 1/2AT^2  for 7 sec = 1/2*2 m/s^2 * 7s^2

    = 1/2*2*49

    = 49m