Question

The horizontal range of a projectile fired at an angle of 15° is 50 m. If it is fired with the same speed at an angle of 45°, its range will be
(a) 60 m (b) 71m (c) 100 m (d) 141m​

Answer 1

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Correct option is { C } 100 m

The horizontal range of a projectile fixed at an angle=15°

Range=50m

In dirst case range=50=u2/g(sin2×15°)

50=2g2gu2=100

In 2nd case range=g(sin2×45°)u2=1100(∵sin90°=1)=100m

Answer 2

Answer:

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Explanation:

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