A car moves towards a tower in a straight road. The angle of elevation is 30° when the car is 100 meters away from the tower. After moving for 5 second the angle becomes 60°. What is the speed of car?
A car moves towards a tower in a straight road. The angle of elevation is 30° when the car is 100 meters away from the tower. After moving for 5 second the angle becomes 60°. What is the speed of car?
1
96 km/hr
2
60 km/hr
3
48 km/hr
4
120 km/hr