You toss a pebble from a cliff which is 20 m above the sea below with an initial speed of 15 m/s at an angle of 30 degrees horizontal. Air resistence is negligible. What is the maximum height reached by the pebble? How long does it take for the pebble to reach the highest point? How long does it take for the pebble to reach the sea from the highest point? How far into the sea (from the cliff) does the pebble reach?

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Projectile Motion