- #1
cbrowne
- 30
- 0
Hello could someone please check this question for me. Thanks
On her way to school, a child discovered that her loonie is missing and there is a
hole in her pocket. In searching for the missing coin, the child turned back and
walked for 9.5 m, along the sidewalk. Then she turned forward and walked for
3.2 m and then turned back again and walked for 17.8 m before finding her
loonie.
(a) What is the total displacement of the child?
(b) If the child spent 8.5 minutes searching for the coin, what was her average velocity? (c) What was her average speed?
a) Δ x = -24.1 m
b) V average = Δx/ Δt = -24.1m/ 8.5 min x 60 secs = 0.047255 m /s
c) S avg = d1+d2+d3/ Δt
S avg = 9.5m+ 3.2m + 17.8 m/8.5min x 60 secs = 0.059804 m/s
Homework Statement
On her way to school, a child discovered that her loonie is missing and there is a
hole in her pocket. In searching for the missing coin, the child turned back and
walked for 9.5 m, along the sidewalk. Then she turned forward and walked for
3.2 m and then turned back again and walked for 17.8 m before finding her
loonie.
(a) What is the total displacement of the child?
(b) If the child spent 8.5 minutes searching for the coin, what was her average velocity? (c) What was her average speed?
Homework Equations
The Attempt at a Solution
a) Δ x = -24.1 m
b) V average = Δx/ Δt = -24.1m/ 8.5 min x 60 secs = 0.047255 m /s
c) S avg = d1+d2+d3/ Δt
S avg = 9.5m+ 3.2m + 17.8 m/8.5min x 60 secs = 0.059804 m/s