Question

plz give the answer of these 2 questions​

Answer 1

Answer:

first question

distance is 4km+2km=6km

displacement=4km-2km=2km

second question

distance =70v=70*10*3.14=2198m

displacement=its total 3.5 rounds so 200m

Explanation:

displace is the shortest distance between initial and final points

for second question

time taken to cover the circumference=2π200/2 is 20s

speed=10π

in 1min10sec or 70s

distance covered speed*time

=10π×70=700*3.14

=700π

which is 3.5 rounds

which means after 3.5 rounds or 70 sec the athelete will be at the exactly opposite point from the initial starting point.

the shortest distance between the final and initial point is the diameter=200m