A hiker stands on the edge of a cliff 490 above the ground and throws a stone horizontally with an initial speed of 15 m/s. Neglecting air resistance, find the time taken by the stone to reach the ground.
5s
10s
12s
15s
Since the stone is thrown horizontally, the vertical component of velocity
This gives the time for the stone to reach the ground,
Study 40% syllabus and score up to 100% marks in JEE