Question

please answer this....☺☺

Answer 1

Height raised = speed × time
h = 88 × 1.1 ( since 1min 28sec equals 88 secs.)
h = 96.8m or 9680cm

Now ,
Circumference = 2πr
$= 2 \times \frac{22}{7} \times 38.5 \\ = 44 \times 5.5 \\ = 242cm$
No. of revolutions = h / c
No. of revolutions = 9680/242
No. of revolutions = 40revolutions...