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A student and his friend while experimen...

A student and his friend while experimenting for projectile motion with a stopwatch take some approximate readings. As one throws a stone in air at some angle, other observes that, after 2.0s, it is moving at an angle `30^(@)` to the horizontal, and 1.0 s after that instant, it is traveling horizontally. Determine the magnitude and the direction of initial velocity of stone.

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To solve the problem, we need to determine the magnitude and direction of the initial velocity of the stone thrown at an angle. We will use the information provided about the stone's motion at specific times. ### Step-by-Step Solution: 1. **Understanding the Motion**: - The stone is thrown at an angle θ. - After 2 seconds, it makes a 30° angle with the horizontal. - After 3 seconds (1 second later), it travels horizontally, which means its vertical velocity is 0 at that point (maximum height). ...
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