Question

What is velocity ?
$\huge \underline{ \tt{ \pink{Free Points᭄}}}$me.


​

Answer 1

Answer:

The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion (e.g. 60 km/h to the north).

hope it's help you ☺️☺️☺️☺️☺️☺️☺️☺️

Answer 2

• ᴀɴꜱᴡᴇʀ :

ᴛʜᴇ ᴛᴇʀᴍꜱ ᴠᴇʟᴏᴄɪᴛʏ ᴀɴᴅ ꜱᴘᴇᴇᴅ ɢɪᴠᴇ ᴜꜱ ᴀɴ ɪᴅᴇᴀ ᴏꜰ ʜᴏᴡ ꜰᴀꜱᴛ ᴏʀ ꜱʟᴏᴡ ᴀɴ ᴏʙᴊᴇᴄᴛ ɪꜱ ᴍᴏᴠɪɴɢ. Qᴜɪᴛᴇ ᴏꜰᴛᴇɴ, ᴡᴇ ᴄᴏᴍᴇ ᴀᴄʀᴏꜱꜱ ꜱɪᴛᴜᴀᴛɪᴏɴꜱ ᴡʜᴇʀᴇ ᴡᴇ ɴᴇᴇᴅ ᴛᴏ ɪᴅᴇɴᴛɪꜰʏ ᴡʜɪᴄʜ ᴏꜰ ᴛʜᴇ ᴛᴡᴏ ᴏʀ ᴍᴏʀᴇ ᴏʙᴊᴇᴄᴛꜱ ɪꜱ ᴍᴏᴠɪɴɢ ꜰᴀꜱᴛᴇʀ. ᴏɴᴇ ᴄᴀɴ ᴇᴀꜱɪʟʏ ᴛᴇʟʟ ᴛʜᴇ ꜰᴀꜱᴛᴇʀ ᴏꜰ ᴛʜᴇ ᴛᴡᴏ ɪꜰ ᴛʜᴇʏ ᴀʀᴇ ᴍᴏᴠɪɴɢ ɪɴ ᴛʜᴇ ꜱᴀᴍᴇ ᴅɪʀᴇᴄᴛɪᴏɴ ᴏɴ ᴛʜᴇ ꜱᴀᴍᴇ ʀᴏᴀᴅ. ʜᴏᴡᴇᴠᴇʀ, ɪꜰ ᴛʜᴇɪʀ ᴅɪʀᴇᴄᴛɪᴏɴ ᴏꜰ ᴍᴏᴛɪᴏɴ ɪꜱ ɪɴ ᴛʜᴇ ᴏᴘᴘᴏꜱɪᴛᴇ ᴅɪʀᴇᴄᴛɪᴏɴ, ᴛʜᴇɴ ɪᴛ ɪꜱ ᴅɪꜰꜰɪᴄᴜʟᴛ ᴛᴏ ᴅᴇᴛᴇʀᴍɪɴᴇ ᴛʜᴇ ꜰᴀꜱᴛᴇꜱᴛ. ɪɴ ꜱᴜᴄʜ ᴄᴀꜱᴇꜱ, ᴛʜᴇ ᴄᴏɴᴄᴇᴘᴛ ᴏꜰ ᴠᴇʟᴏᴄɪᴛʏ ɪꜱ ʜᴇʟᴘꜰᴜʟ, ᴡʜɪᴄʜ ᴡᴇ ꜱʜᴀʟʟ ʙᴇ ᴅɪꜱᴄᴜꜱꜱɪɴɢ ɪɴ ᴛʜɪꜱ ᴀʀᴛɪᴄʟᴇ.

• ᴇxᴘʟᴀɴᴀᴛɪᴏɴ :

ᴛʜᴇ ᴍᴇᴀɴɪɴɢ ᴏꜰ ᴠᴇʟᴏᴄɪᴛʏ ᴏꜰ ᴀɴ ᴏʙᴊᴇᴄᴛ ᴄᴀɴ ʙᴇ ᴅᴇꜰɪɴᴇᴅ ᴀꜱ ᴛʜᴇ ʀᴀᴛᴇ ᴏꜰ ᴄʜᴀɴɢᴇ ᴏꜰ ᴛʜᴇ ᴏʙᴊᴇᴄᴛ’ꜱ ᴘᴏꜱɪᴛɪᴏɴ ᴡɪᴛʜ ʀᴇꜱᴘᴇᴄᴛ ᴛᴏ ᴀ ꜰʀᴀᴍᴇ ᴏꜰ ʀᴇꜰᴇʀᴇɴᴄᴇ ᴀɴᴅ ᴛɪᴍᴇ. ɪᴛ ᴍɪɢʜᴛ ꜱᴏᴜɴᴅ ᴄᴏᴍᴘʟɪᴄᴀᴛᴇᴅ ʙᴜᴛ ᴠᴇʟᴏᴄɪᴛʏ ɪꜱ ʙᴀꜱɪᴄᴀʟʟʏ ꜱᴘᴇᴇᴅɪɴɢ ɪɴ ᴀ ꜱᴘᴇᴄɪꜰɪᴄ ᴅɪʀᴇᴄᴛɪᴏɴ. ɪᴛ ɪꜱ ᴀ ᴠᴇᴄᴛᴏʀ Qᴜᴀɴᴛɪᴛʏ, ᴡʜɪᴄʜ ᴍᴇᴀɴꜱ ᴡᴇ ɴᴇᴇᴅ ʙᴏᴛʜ ᴍᴀɢɴɪᴛᴜᴅᴇ (ꜱᴘᴇᴇᴅ) ᴀɴᴅ ᴅɪʀᴇᴄᴛɪᴏɴ ᴛᴏ ᴅᴇꜰɪɴᴇ ᴠᴇʟᴏᴄɪᴛʏ. ᴛʜᴇ ꜱɪ ᴜɴɪᴛ ᴏꜰ ɪᴛ ɪꜱ ᴍᴇᴛᴇʀ ᴘᴇʀ ꜱᴇᴄᴏɴᴅ (ᴍꜱ-1). ɪꜰ ᴛʜᴇʀᴇ ɪꜱ ᴀ ᴄʜᴀɴɢᴇ ɪɴ ᴍᴀɢɴɪᴛᴜᴅᴇ ᴏʀ ᴛʜᴇ ᴅɪʀᴇᴄᴛɪᴏɴ ɪɴ ᴛʜᴇ ᴠᴇʟᴏᴄɪᴛʏ ᴏꜰ ᴀ ʙᴏᴅʏ ᴛʜᴇ ʙᴏᴅʏ ɪꜱ ꜱᴀɪᴅ ᴛᴏ ʙᴇ ᴀᴄᴄᴇʟᴇʀᴀᴛɪɴɢ.

• ɪɴɪᴛɪᴀʟ ᴀɴᴅ ꜰɪɴᴀʟ ᴠᴇʟᴏᴄɪᴛʏ :

ɪɴɪᴛɪᴀʟ ᴠᴇʟᴏᴄɪᴛʏ ᴅᴇꜱᴄʀɪʙᴇꜱ ʜᴏᴡ ꜰᴀꜱᴛ ᴀɴ ᴏʙᴊᴇᴄᴛ ᴛʀᴀᴠᴇʟꜱ ᴡʜᴇɴ ɢʀᴀᴠɪᴛʏ ꜰɪʀꜱᴛ ᴀᴘᴘʟɪᴇꜱ ꜰᴏʀᴄᴇ ᴏɴ ᴛʜᴇ ᴏʙᴊᴇᴄᴛ. ᴏɴ ᴛʜᴇ ᴏᴛʜᴇʀ ʜᴀɴᴅ, ᴛʜᴇ ꜰɪɴᴀʟ ᴠᴇʟᴏᴄɪᴛʏ ɪꜱ ᴀ ᴠᴇᴄᴛᴏʀ Qᴜᴀɴᴛɪᴛʏ ᴛʜᴀᴛ ᴍᴇᴀꜱᴜʀᴇꜱ ᴛʜᴇ ꜱᴘᴇᴇᴅ ᴀɴᴅ ᴅɪʀᴇᴄᴛɪᴏɴ ᴏꜰ ᴀ ᴍᴏᴠɪɴɢ ʙᴏᴅʏ ᴀꜰᴛᴇʀ ɪᴛ ʜᴀꜱ ʀᴇᴀᴄʜᴇᴅ ɪᴛꜱ ᴍᴀxɪᴍᴜᴍ ᴀᴄᴄᴇʟᴇʀᴀᴛɪᴏɴ.

• ʜᴏᴡ ᴛᴏ ꜰɪɴᴅ ᴛʜᴇ ꜰɪɴᴀʟ ᴠᴇʟᴏᴄɪᴛʏ :

ꜰɪɴᴅɪɴɢ ᴛʜᴇ ꜰɪɴᴀʟ ᴠᴇʟᴏᴄɪᴛʏ ɪꜱ ꜱɪᴍᴘʟᴇ ᴡɪᴛʜ ᴀ ꜰᴇᴡ ᴄᴀʟᴄᴜʟᴀᴛɪᴏɴꜱ ᴀɴᴅ ʙᴀꜱɪᴄ ᴄᴏɴᴄᴇᴘᴛᴜᴀʟ ᴋɴᴏᴡʟᴇᴅɢᴇ.

ᴅᴇᴛᴇʀᴍɪɴᴇ ᴛʜᴇ ᴏʙᴊᴇᴄᴛ’ꜱ ᴏʀɪɢɪɴᴀʟ ᴠᴇʟᴏᴄɪᴛʏ ʙʏ ᴅɪᴠɪᴅɪɴɢ ᴛʜᴇ ᴛɪᴍᴇ ɪᴛ ᴛᴏᴏᴋ ꜰᴏʀ ᴛʜᴇ ᴏʙᴊᴇᴄᴛ ᴛᴏ ᴛʀᴀᴠᴇʟ ᴀ ɢɪᴠᴇɴ ᴅɪꜱᴛᴀɴᴄᴇ ʙʏ ᴛʜᴇ ᴛᴏᴛᴀʟ ᴅɪꜱᴛᴀɴᴄᴇ. ɪɴ ᴛʜᴇ ᴇQᴜᴀᴛɪᴏɴ ᴠ = ᴅ/ᴛ, ᴠ ɪꜱ ᴛʜᴇ ᴠᴇʟᴏᴄɪᴛʏ, ᴅ ɪꜱ ᴛʜᴇ ᴅɪꜱᴛᴀɴᴄᴇ ᴀɴᴅ ᴛ ɪꜱ ᴛʜᴇ ᴛɪᴍᴇ.

ᴅᴇᴛᴇʀᴍɪɴᴇ ᴛʜᴇ ᴏʙᴊᴇᴄᴛ’ꜱ ᴀᴄᴄᴇʟᴇʀᴀᴛɪᴏɴ ʙʏ ᴅɪᴠɪᴅɪɴɢ ᴛʜᴇ ᴏʙᴊᴇᴄᴛ’ꜱ ᴍᴀꜱꜱ ʙʏ ᴛʜᴇ ꜰᴏʀᴄᴇ ᴀɴᴅ ᴍᴜʟᴛɪᴘʟʏ ᴛʜᴇ ᴀɴꜱᴡᴇʀ ʙʏ ᴛʜᴇ ᴛɪᴍᴇ ɪᴛ ᴛᴏᴏᴋ ꜰᴏʀ ɪᴛ ᴛᴏ ᴀᴄᴄᴇʟᴇʀᴀᴛᴇ. ꜰᴏʀ ᴇxᴀᴍᴘʟᴇ, ɪꜰ ᴛʜᴇ ᴏʙᴊᴇᴄᴛ ᴡᴇɪɢʜꜱ 30 ᴋɢ ᴀɴᴅ ʜᴀꜱ ᴀ ꜰᴏʀᴄᴇ ᴏꜰ 15 ɴ ᴀᴘᴘʟɪᴇᴅ ᴛᴏ ɪᴛ, ᴛʜᴇɴ ᴛʜᴇ ᴀᴄᴄᴇʟᴇʀᴀᴛɪᴏɴ ᴡᴏᴜʟᴅ ʙᴇ 4 ᴍ/ꜱ.

ᴀᴅᴅ ᴛʜᴇ Qᴜᴀɴᴛɪᴛʏ ᴏʙᴛᴀɪɴᴇᴅ ꜰʀᴏᴍ ꜱᴛᴇᴘ 1 ᴀɴᴅ ꜱᴛᴇᴘ 2 ᴛᴏ ᴏʙᴛᴀɪɴ ᴛʜᴇ ꜰɪɴᴀʟ ᴠᴇʟᴏᴄɪᴛʏ. ꜰᴏʀ ᴇxᴀᴍᴘʟᴇ, ɪꜰ ʏᴏᴜʀ ɪɴɪᴛɪᴀʟ ᴠᴇʟᴏᴄɪᴛʏ ᴡᴀꜱ 3 ᴍ/ꜱ ᴀɴᴅ ʏᴏᴜʀ ᴏʙᴊᴇᴄᴛ ᴀᴄᴄᴇʟᴇʀᴀᴛɪᴏɴ ɪꜱ 4 ᴍ/ꜱ, ʏᴏᴜʀ ꜰɪɴᴀʟ ᴠᴇʟᴏᴄɪᴛʏ ɪꜱ 7 ᴍ/ꜱ (3 + 4 = 7).

• ᴄᴏɴꜱᴛᴀɴᴛ ᴠᴇʟᴏᴄɪᴛʏ :

ᴛʜᴇ ᴍᴏᴛɪᴏɴ ᴡɪᴛʜ ᴄᴏɴꜱᴛᴀɴᴛ ᴠᴇʟᴏᴄɪᴛʏ ɪꜱ ᴛʜᴇ ꜱɪᴍᴘʟᴇꜱᴛ ꜰᴏʀᴍ ᴏꜰ ᴍᴏᴛɪᴏɴ. ᴡᴇ ᴡɪᴛɴᴇꜱꜱ ᴄᴏɴꜱᴛᴀɴᴛ ᴍᴏᴛɪᴏɴ ᴡʜᴇɴᴇᴠᴇʀ ᴀɴ ᴏʙᴊᴇᴄᴛ ꜱʟɪᴅᴇꜱ ᴏᴠᴇʀ ᴀ ʜᴏʀɪᴢᴏɴᴛᴀʟ, ʟᴏᴡ ꜰʀɪᴄᴛɪᴏɴ ꜱᴜʀꜰᴀᴄᴇ (ᴡʜᴇɴ ᴀ ᴘᴜᴄᴋ ꜱʟɪᴅᴇꜱ ᴏᴠᴇʀ ᴀ ʜᴏᴄᴋᴇʏ ʀɪɴᴋ.) ᴛʜᴇ ᴀʙᴏᴠᴇ ɢʀᴀᴘʜ ɪꜱ ᴀ ɢʀᴀᴘʜ ᴏꜰ ᴅɪꜱᴘʟᴀᴄᴇᴍᴇɴᴛ ᴠᴇʀꜱᴜꜱ ᴛɪᴍᴇ ꜰᴏʀ ᴀ ʙᴏᴅʏ ᴍᴏᴠɪɴɢ ᴡɪᴛʜ ᴄᴏɴꜱᴛᴀɴᴛ ᴠᴇʟᴏᴄɪᴛʏ. ᴛʜᴇ ꜱᴛʀᴀɪɢʜᴛ ʟɪɴᴇ ɪɴ ᴛʜᴇ ɢʀᴀᴘʜ ᴄᴀɴ ʙᴇ ᴀʟɢᴇʙʀᴀɪᴄᴀʟʟʏ ʀᴇᴘʀᴇꜱᴇɴᴛᴇᴅ ᴀꜱ ꜰᴏʟʟᴏᴡꜱ:

x=x0+ᴠᴛ ɪɴ ᴛʜᴇ ᴇQᴜᴀᴛɪᴏɴ, x0 ɪꜱ ᴛʜᴇ ᴅɪꜱᴘʟᴀᴄᴇᴍᴇɴᴛ ᴀᴛ ᴛɪᴍᴇ ᴛ, ᴠ ɪꜱ ᴛʜᴇ ᴄᴏɴꜱᴛᴀɴᴛ ᴠᴇʟᴏᴄɪᴛʏ ᴏꜰ ᴛʜᴇ ʙᴏᴅʏ ᴠ=ᴅx/ᴅᴛ.

• ᴠᴇʟᴏᴄɪᴛʏ ᴜɴɪᴛꜱ :

ᴛʜᴇ ꜱɪ ᴜɴɪᴛ ᴏꜰ ᴠᴇʟᴏᴄɪᴛʏ ɪꜱ ᴍ/ꜱ (ᴍ⋅ꜱ−1). ᴏᴛʜᴇʀ ᴜɴɪᴛꜱ ᴀɴᴅ ᴅɪᴍᴇɴꜱɪᴏɴꜱ ᴏꜰ ᴠᴇʟᴏᴄɪᴛʏ ᴀʀᴇ ɢɪᴠᴇɴ ɪɴ ᴛʜᴇ ᴛᴀʙʟᴇ ʙᴇʟᴏᴡ.

• ᴜɴɪᴛ ᴏꜰ ᴠᴇʟᴏᴄɪᴛʏ

ᴄᴏᴍᴍᴏɴ ꜱʏᴍʙᴏʟꜱ - ᴠ, ᴠ, ᴠ⃗

ꜱɪ ᴜɴɪᴛ - ᴍ/ꜱ

ᴏᴛʜᴇʀ ᴜɴɪᴛꜱ ᴍᴘʜ - ꜰᴛ/ꜱ

ᴅɪᴍᴇɴꜱɪᴏɴ - ʟᴛ−¹

• ꜱᴘᴇᴇᴅ ᴀɴᴅ ᴠᴇʟᴏᴄɪᴛʏ :

ꜱᴘᴇᴇᴅ ᴀɴᴅ ᴠᴇʟᴏᴄɪᴛʏ ᴄᴀɴ ʙᴇ ᴀ ʟɪᴛᴛʟᴇ ᴄᴏɴꜰᴜꜱɪɴɢ ꜰᴏʀ ᴍᴏꜱᴛ ᴏꜰ ᴜꜱ. ᴡᴇʟʟ, ᴛʜᴇ ᴅɪꜰꜰᴇʀᴇɴᴄᴇ ʙᴇᴛᴡᴇᴇɴ ꜱᴘᴇᴇᴅ ᴀɴᴅ ᴠᴇʟᴏᴄɪᴛʏ ɪꜱ ᴛʜᴀᴛ ꜱᴘᴇᴇᴅ ɢɪᴠᴇꜱ ᴜꜱ ᴀɴ ɪᴅᴇᴀ ᴏꜰ ʜᴏᴡ ꜰᴀꜱᴛ ᴀɴ ᴏʙᴊᴇᴄᴛ ɪꜱ ᴍᴏᴠɪɴɢ ᴡʜᴇʀᴇᴀꜱ ᴠᴇʟᴏᴄɪᴛʏ ɴᴏᴛ ᴏɴʟʏ ᴛᴇʟʟꜱ ᴜꜱ ɪᴛꜱ ꜱᴘᴇᴇᴅ ʙᴜᴛ ᴀʟꜱᴏ ᴛᴇʟʟꜱ ᴜꜱ ᴛʜᴇ ᴅɪʀᴇᴄᴛɪᴏɴ ᴛʜᴇ ʙᴏᴅʏ ɪꜱ ᴍᴏᴠɪɴɢ ɪɴ. ᴡᴇ ᴄᴀɴ ᴅᴇꜰɪɴᴇ ꜱᴘᴇᴇᴅ ᴀꜱ ᴀ ꜰᴜɴᴄᴛɪᴏɴ ᴏꜰ ᴅɪꜱᴛᴀɴᴄᴇ ᴛʀᴀᴠᴇʟᴇᴅ ᴡʜᴇʀᴇᴀꜱ ᴠᴇʟᴏᴄɪᴛʏ ɪꜱ ᴀ ꜰᴜɴᴄᴛɪᴏɴ ᴏꜰ ᴅɪꜱᴘʟᴀᴄᴇᴍᴇɴᴛ. ɪɴꜱᴛᴀɴᴛᴀɴᴇᴏᴜꜱ ᴠᴇʟᴏᴄɪᴛʏ ɪꜱ ᴛʜᴇ ᴠᴇʟᴏᴄɪᴛʏ ᴏꜰ ᴀ ʙᴏᴅʏ ᴀᴛ ᴀɴʏ ɢɪᴠᴇɴ ᴛɪᴍᴇ. ᴀᴠᴇʀᴀɢᴇ ᴠᴇʟᴏᴄɪᴛʏ ɪꜱ ᴛʜᴇ ᴛᴏᴛᴀʟ ᴅɪꜱᴘʟᴀᴄᴇᴍᴇɴᴛ ʙʏ ᴛᴏᴛᴀʟ ᴛɪᴍᴇ ᴀɴᴅ ɪꜱ ɢɪᴠᴇɴ ʙʏ ᴠ = △x△ᴛ ᴡʜᴇʀᴇ ∆x ɪꜱ ᴛʜᴇ ᴛᴏᴛᴀʟ ᴅɪꜱᴘʟᴀᴄᴇᴍᴇɴᴛ ᴏꜰ ᴛʜᴇ ʙᴏᴅʏ ᴀɴᴅ ∆ᴛ ɪꜱ ᴛʜᴇ ᴛɪᴍᴇ. ᴀᴠᴇʀᴀɢᴇ ᴠᴇʟᴏᴄɪᴛʏ ɪꜱ ᴀʟᴡᴀʏꜱ ʟᴇꜱꜱ ᴛʜᴀɴ ᴏʀ ᴇQᴜᴀʟ ᴛᴏ ᴛʜᴀᴛ ᴏꜰ ᴀᴠᴇʀᴀɢᴇ ꜱᴘᴇᴇᴅ; ᴛʜɪꜱ ɪꜱ ʙᴇᴄᴀᴜꜱᴇ ᴅɪꜱᴘʟᴀᴄᴇᴍᴇɴᴛ ᴄᴀɴ ɴᴇᴠᴇʀ ʙᴇ ʜɪɢʜᴇʀ ᴛʜᴀɴ ᴛʜᴇ ᴅɪꜱᴛᴀɴᴄᴇ ᴛʀᴀᴠᴇʟᴇᴅ ʙᴜᴛ ᴛʜᴇ ᴅɪꜱᴛᴀɴᴄᴇ ᴛʀᴀᴠᴇʟᴇᴅ ᴄᴀɴ ʙᴇ ʜɪɢʜᴇʀ ᴛʜᴀɴ ᴛʜᴀᴛ ᴏꜰ ᴅɪꜱᴘʟᴀᴄᴇᴍᴇɴᴛ.

• ᴇxᴀᴍᴘʟᴇ ᴏꜰ ᴠᴇʟᴏᴄɪᴛʏ :

ᴛᴏ ᴜɴᴅᴇʀꜱᴛᴀɴᴅ ᴛʜᴇ ᴄᴏɴᴄᴇᴘᴛ ᴏꜰ ɪɴꜱᴛᴀɴᴛᴀɴᴇᴏᴜꜱ ᴠᴇʟᴏᴄɪᴛʏ ᴀɴᴅ ᴀᴠᴇʀᴀɢᴇ ᴠᴇʟᴏᴄɪᴛʏ, ʟᴇᴛ’ꜱ ᴛᴀᴋᴇ ᴛʜɪꜱ ᴇxᴀᴍᴘʟᴇ. ᴊᴇᴡᴇʟ ɢᴏᴇꜱ ᴛᴏ ꜱᴄʜᴏᴏʟ ɪɴ ʜᴇʀ ᴅᴀᴅ’ꜱ ᴄᴀʀ ᴇᴠᴇʀʏ ᴍᴏʀɴɪɴɢ. ʜᴇʀ ꜱᴄʜᴏᴏʟ ɪꜱ 8 ᴋᴍ ꜰʀᴏᴍ ʜᴇʀ ʜᴏᴍᴇ, ᴀɴᴅ ꜱʜᴇ ᴛᴀᴋᴇꜱ 15 ᴍɪɴꜱ ᴛᴏ ᴛʀᴀᴠᴇʟ, ʙᴜᴛ ᴡʜᴇɴ ꜱʜᴇ ʟᴏᴏᴋꜱ ᴀᴛ ᴛʜᴇ ꜱᴘᴇᴇᴅᴏᴍᴇᴛᴇʀ ᴏɴ ᴛʜᴇ ᴅᴀꜱʜʙᴏᴀʀᴅ ᴏꜰ ᴛʜᴇ ᴄᴀʀ, ɪᴛ ꜱʜᴏᴡꜱ ᴀ ᴅɪꜰꜰᴇʀᴇɴᴛ ʀᴇᴀᴅɪɴɢ ᴀʟʟ ᴛʜᴇ ᴛɪᴍᴇ. ꜱᴏ, ɴᴏᴡ ʜᴏᴡ ᴡᴏᴜʟᴅ ꜱʜᴇ ᴋɴᴏᴡ ʜᴇʀ ᴠᴇʟᴏᴄɪᴛʏ?

ᴡᴇʟʟ, ᴛʜᴇ ᴀᴠᴇʀᴀɢᴇ ᴠᴇʟᴏᴄɪᴛʏ ᴏꜰ ᴊᴇᴡᴇʟ’ꜱ ᴄᴀʀ ᴄᴏᴜʟᴅ ʙᴇ ꜰᴏᴜɴᴅ ʙʏ:

ꜰᴏʀ ᴄᴏɴᴠᴇɴɪᴇɴᴄᴇ, ᴡᴇ ʜᴀᴠᴇ ᴄᴏɴꜱɪᴅᴇʀᴇᴅ ᴛʜᴇ ᴄᴀʀ ᴛᴏ ᴍᴏᴠᴇ ɪɴ ᴀ ꜱᴛʀᴀɪɢʜᴛ ʟɪɴᴇ, ᴀɴᴅ ᴡᴇ ᴡɪʟʟ ᴄᴏɴᴠᴇʀᴛ ᴀʟʟ ᴛʜᴇ ᴜɴɪᴛꜱ ᴏꜰ ᴛɪᴍᴇ ᴛᴏ ʜᴏᴜʀꜱ. ᴛʜᴇʀᴇꜰᴏʀᴇ, 15 ᴍɪɴꜱ = 1560 = 0.25 ʜᴏᴜʀꜱ.

ᴀᴠᴇʀᴀɢᴇ ᴠᴇʟᴏᴄɪᴛʏ, ᴠ = △x△ᴛ

ᴠ = 8 ᴋᴍ/0.25 ʜʀꜱ

ᴠ = 32 ᴋᴍ/ʜ

ɴᴏᴡ ᴡᴇ ꜱᴇᴇ ᴛʜᴀᴛ ᴇᴠᴇɴ ᴛʜᴏᴜɢʜ ᴛʜᴇ ᴄᴀʀ ᴍᴀʏ ᴠᴀʀʏ ɪᴛꜱ ꜱᴘᴇᴇᴅ, ɪꜰ ɪᴛ ᴄᴏᴠᴇʀꜱ ᴛʜᴇ ꜱᴀᴍᴇ ᴀᴍᴏᴜɴᴛ ᴏꜰ ᴅɪꜱᴛᴀɴᴄᴇ ɪɴ ᴛʜᴇ ꜱᴀᴍᴇ ᴀᴍᴏᴜɴᴛ ᴏꜰ ᴛɪᴍᴇ, ᴇᴠᴇʀʏ ᴛɪᴍᴇ ɪᴛꜱ ᴀᴠᴇʀᴀɢᴇ ᴠᴇʟᴏᴄɪᴛʏ ᴡɪʟʟ ʀᴇᴍᴀɪɴ ᴛʜᴇ ꜱᴀᴍᴇ.