NEET Physics Question - Kinematics - Projectile from Height

A ball is thrown horizontally with a speed of 20 m/s from a height of 80 m. Find the horizontal distance before hitting the ground.

60 m

70 m

80 m

90 m

Using the formula for range in horizontal projectile motion:

$R = v_x \times \sqrt{\frac{2h}{g}}$ $R = 20 \times \sqrt{\frac{2 \times 80}{10}}$ $R = 20 \times \sqrt{16} = 20 \times 4 = 80 \text{ m}$

Correct Answer: (3) 80 m

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