Arunner of mass 51.8 kg starts from rest and accelerates with a constant acceleration of 1.31 m/s^2 until she reaches a velocity of 5.47 m/s. she then continues running at this constant velocity. how long does the runner take to travel 165 m?

32.24 s

Explanation:

Given

mass of runner (m)=51.8 kg

Constant acceleration(a)=

Final velocity (v)=5.47 m/s

Time taken taken to reach 5.47 m/s

v=u+at

Distance traveled during this time is

So remaining distance left to travel with constant velocity=153.57 m

thus time

Total time=28.07+4.17=32.24 s

a. vertically

explanation:

i tried it and took the test

if im wrong then we have different tests

i think its d if wrong im sorry