Observe the diagram below. A person starts at A, walks along the bold path and finishes at B. Each
square is 1 km along its edge. Use the diagram in answering the next two
questions.
8. This person walks a distance of ________ km.
9. This person has a displacement of ________.
a. 0 km b. 3 km c. 3 km, E d. 3 km, W
e. 5 km f. 5 km, N g. 5 km, S h. 6 km
i. 6 km, E j. 6 km, W k. 31 km l. 31 km, E
m. 31 km, W n. None of these
Answers
Answer:
ᴅɪꜱᴛᴀɴᴄᴇ
ᴀʙ=30ᴍ
ʙᴄ=40ᴍ
ᴠᴇʟᴏᴄɪᴛy
ᴀʙ=2ᴍ/ꜱ
ʙᴄ=1.5ᴍ/ꜱ
ɴᴏᴡ, ᴛʜᴇ ᴅɪꜱᴛᴀɴᴄᴇ ᴏꜰ ᴀᴄ
ᴀᴄ=ᴀʙ+ʙᴄ
ᴀᴄ=(30)2+(40)2
ᴀᴄ=2500
ᴀᴄ=50ᴍ
ɴᴏᴡ, ᴛʜᴇ ᴛɪᴍᴇ ᴏꜰ ᴀʙ
ᴛᴀʙ=230
ᴛᴀʙ=15ꜱᴇᴄ
ᴛʜᴇ ᴛɪᴍᴇ ᴏꜰ ʙᴄ
ᴛʙᴄ=1.540
ᴛʙᴄ=26.67ꜱᴇᴄ
ɴᴏᴡ, ᴛʜᴇ ᴛᴏᴛᴀʟ ᴛɪᴍᴇ ᴛ=26.67ꜱᴇᴄ
ᴛʜᴇ ᴀᴠᴇʀᴀɢᴇ ꜱᴩᴇᴇᴅ41.6770ᴍ/ꜱ
ɴᴏᴡ,
ᴛʜᴇ ᴀᴠᴇʀᴀɢᴇ ᴠᴇʟᴏᴄɪᴛy41.6750ᴍ/ꜱ
ʜᴇɴᴄᴇ, ᴛʜᴇ ᴀᴠᴇʀᴀɢᴇ ꜱᴩᴇᴇᴅ ᴀɴᴅ ᴠᴇʟᴏᴄɪᴛy ᴀʀᴇ 41.6770ᴍ/ꜱ,41.6750ᴍ/ꜱ
This person walks a distance of ____31____ km.
This person has a displacement of ____3____km.
Explanation:
Since, we can see in the diagram also it is told in question that each square is of edge 1km. From A to B, there is bold line through 31 edges.
Therefore, distance travelled from A to B is 31km.
Since, displacement is the distance from initial position to final position. Displacement in given diagram is 3km. As there is difference of 3 blocks between initial position and final position.