A man in a boat rowing away from a cliff $150$ m high takes $2$ minutes to change the angle of elevation of the top of the cliff from $60^\circ$ to $45^\circ$. Find the speed of the boat.

Options:

• A: $75(3 - \sqrt{3})$ m/min
• B: $75(3 + \sqrt{3})$ m/min
• C: $25(3 - \sqrt{3})$ m/min
• D: $50(3 - \sqrt{3})$ m/min

Related Practice Questions:

• Which of the following artifacts, extensively found at Burzahom and Gufkral, specifically indicates that the Neolithic inhabitants of Kashmir practiced sewing animal skins for clothing to survive the harsh winters?
• The earliest known evidence of rock art in India, in the form of 'Cupules' (hemispherical cup-shaped depressions carved into rock), belongs to the Lower Paleolithic age and was found at:
• The first human colonization of the fertile Ganga plains, as evidenced by archaeological discoveries at Sarai Nahar Rai and Mahadaha, took place during which period?
• Which prehistoric site located in the Thar Desert of Rajasthan provides a continuous and undisturbed profile of Lower, Middle, and Upper Paleolithic cultures?