Question

( frac{2}{110 m} )
( R=Y_{2} )
( W=frac{pi}{2}=D i ) tance of
trac
Total didtance ( =1+frac{pi}{2}=1+1.57 )
( =2 cdot 57 quad k_{n} )
Totat the ( =3+8 ) : ( =11 ) meen
( =frac{2 cdot 57}{11}=0.2336 )
( approx 0.25 mathrm{cm} / )

# 12. A cyclist rides 1 km straight in 3 minutes, then returns to the starting point along a semi-circular track in the next 8 minutes. His average speed is (a) 0.32 km min-1 (b) 0.25 km min-1 (c) 0.51 km min-1 (d) 0.64 km min-1

Solution