A highway leads to the foot of 300 m high tower. An obeservatory is set at the top ofthe towerIt sees a car moving towards it at an angle of depression of 30Â°. After 15 seconds angle ofdepression becomes 60, (a) Find the distance travelled by the car during this time. (b) How thisobservatory is helpful to regulate the traffic on the highway?

A highway leads to the foot of 300 m high tower. An obeservatory is se

1.	A highway leads to the foot of 300 m high tower. An obeservatory is set at the top ofthe towerIt sees a car moving towards it at an angle of depression of 30Â°. After 15 seconds angle ofdepression becomes 60, (a) Find the distance travelled by the car during this time. (b) How thisobservatory is helpful to regulate the traffic on the highway?
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