NCERT Exercise 9.1 - Q15 - Some Applications of Trigonometry
Question: A straight highway leads to the foot of a tower. A man at the top observes a car at an angle of depression of 30°. Six seconds later, the angle of depression is 60°. Find the time taken by the car to reach the foot of the tower from the second observation point, if the car moves with uniform speed.
Answer: The car takes 3 seconds to reach the foot of the tower from the second observation point.
Full step-by-step NCERT solution with diagrams on Something by Zero.