A man starts running from his home towards east . After covering 60m ,he turns north and runs 80m. If he runs at uniform rate and covers the distance in 1 minute ,then what is its acceleration?

Answer 1

if he runs at a uniform rate the acceleration is zero.
To determine acceleration, displacement from the starting point is determined using Pythagoras theorem
c^2 = a^2 + b^2
c^2 = 60^2 + 80^2
c^2 = 3600 + 6400
C^2 = 10000 m
c = 100 m.
time (t) = 1 min (60 seconds)
velocity = displacement/ time
= 100/60
= 1.333 ms^-1