1. Solve problems for projectiles launched at different angles with the horizontal to calculate maximum height, range, and total time of flight of the projectile. 2. Use examples derive from sports to show that the angle of release affects the range and height of a projectile. Directions: Solve the given word problem and complete the table below. Problem: A sepak takraw player kicked the ball at a speed of 12 m/s. Determine the range and the height reached by the sepak takraw ball at a given angle. Find the total time of flight also.

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.