Answers me my question
Answers
Answer:
Distance = 8 cm
Displacement = 4.92 cm
Explanation :
N
W --- |--- E
S
Let '!' be initial position of man
And * be the final position of man
1.5cm
! ------------ (turning towards south)
|
2.0 cm |
|------------------- *
4.5 cm
Solution:
(i) Distance = 1.5cm + 2.0 cm + 4.5 cm
= 8.0 cm = 8 cm
(ii) Displacement:
A
|.
| .
| ---------------------------------------.
B C
'.' represents displacement
we know that Triangle ABC is a right angled triangle
So,
By Pythagoras theorem,
= +
= +
= 4 + 20.25
= 24.25 cm
AC =
AC ≈ 4.92 cm
∴ Displacement = 4.92 cm