A man pushes his lawnmower with a velocity of + 0.75 m/s relative to the ground. A girl rides by on her bike with a velocity of + 6.5 m/s relative to the ground. What is the velocity of the girl relative to the lawnmower?

velocity of the girl relative to the lawnmower = 5.75 m/s

Explanation:

given data

lawnmower velocity relative ground = + 0.75 m/s

bike with a velocity = + 6.5 m/s

to find out

velocity of the girl relative to the lawnmower

solution

we get here velocity of the girl relative to the lawnmower that is

velocity of the girl relative to the lawnmower = bike with a velocity - lawnmower velocity relative ground ... 1

put here value

velocity of the girl relative to the lawnmower = 6.5 m/s - 0.75 m/s

velocity of the girl relative to the lawnmower = 5.75 m/s

velocity of lawnmower with respect to ground = 0.75 m/s

velocity of girl with respect to ground = 6.5 m/s

velocity of girl relative to lawnmower = velocity of girl with respect to ground - velocity of lawnmower with respect to ground

velocity of girl relative to lawnmower = 6.5 - 0.75 = 5.75 m/s