Question

average velocity of a moving body can never be zero whereas average speed may be zero true or false ​

Answer 1

Answer :- False.

Correct statement :- average speed of a moving body can never be zero whereas average velocity may be zero.

Explanation

• Speed is given as the total distance travelled by a body divided by total time taken.Now,if the body is moving,the distance travelled can never be zero and hence speed can never be zero for a moving body.

• Velocity is defined as the ratio of total displacement to the total time taken.Now,if a body reaches the position from where it has started ,its net displacement will be zero and hence velocity will be zero despite of the fact that body is moving.

Answer 2

ANSWER :-

$\huge\orange\star$ $\bf\red{Statement\:is\:false\:.}$

Cᴏʀʀᴇᴄᴛ sᴛᴀᴛᴇᴍᴇɴᴛ :-

$\green\star\:\bf{For\:a\:moving\:body\:,\:Average\:Velocity\:can\:be\:zero\:\atop{but\:Average\:Speed\:can\:never\:be\:zero.}\:}$

EXPLANATION :-

Wᴇ ʜᴀᴠᴇ ᴋɴᴏᴡ ᴛʜᴀᴛ,

$\red\checkmark\:\bf{\purple{Average\:velocity\:=\:\dfrac{Total\:displacement}{Total\:time}\:}}$

$\red\checkmark\:\bf{\blue{Average\:speed\:=\:\dfrac{Total\:distance}{Total\:time}\:}}$

☯︎ For a moving body, total displacement can be zero but total distance can never be zero .

__________________________

$\bf\pink{Q.\:When\:Average\:Velocity\:is\:zero\:?}$

ᴀɴsᴡᴇʀ :-

✯ The average velocity depends on the net displacement of a body .

✯ So if a body starts from a position and comes back to same position after some time, the net displacement is zero .

✯ Consequently , average velocity is zero .