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Answer 1

Step-by-step explanation:

(a) First, calculate the time taken by the car to travel the distance of 20 km before the turn.Using the value of the time taken in the above case and also the speed of he car as 100 km/h, calculate the total distance covered. (b) Suppose the car is at a distance say x krm away from the wal at point A when the fly is at the wall (ooirt 0) The fly hits the glass pane at point B, taking timet, then we have AB (40 km/hr)t and OB (100 km/hr)t x AB OB (140 km/hr) t 140 km/hr or 0B 7 The fly now returns to the wall and dur ng the time the car moves the distance BC. The time taken by the fly in the return path is given as 5 x 100 km/hr 140 km/hr BCtime x speed of the car 140 km/hrx 40 7 or OC OB BC If at the stort of the round tr p the car is at a distancc x away than it is [93/70x] away when the nexr trip again begins Distance of the car at the start of the 1 trip 20km - Distance of the car at the start of the 2 ip (3/) x 20 km Distance of the car at the start of the 3"d rip (32x 20 km -Distance of the car at the stat of the n trip (3/71 20 km Trips will continue till the car reaches the turn where the d stance reduces to zero This will be the case wnen n becomes infinity.

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