I think the answer is three but i can't be sure.
For 100m Race ,
displacement = distance covered .
divide the above equation by time t (assuming it takes t time to complete 100m race),
we get,
velocity = speed.
and for 400m race 1 lap is completed this means that racer's initial and final position coincide (or same) hence,
displacement = 0,
distance ≠0=400m.
=> displacement ≠distance.
=> velocity ≠ speed.
It's between br and si so id go with br
So you don't jump off a cliff thinking you could fly. Laws and Motion are heavily used in jobs and help us understand more about the mechanics of how earth's gravity operates. Imagine in the future where we could manipulate gravity? That's why we learn and study this so much.
<span>The action of suspending someone or something or the condition of being suspended, in particular.
OR<span><span /></span>
The system of springs and shock absorbers by which a vehicle is cushioned from road conditions.</span>
