Mathematics · Kinematics

A particle is projected at an angle of 60° with the horizontal. When the projectile makes an angle of 45° with the horizontal during its motion, its speed is 20 m/s. What is the initial velocity of projection?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

Correct answer

10√2 m/s

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A particle is projected at an angle of 60&deg; with the horizontal. When the projectile makes an angle of 45&deg; with the horizontal during its motion, its speed is 20 m/s. What is the initial velocity of projection?