Question

A football is thrown with velocity of 10 m/s at an angle of 30degrees above the horizontal. What will the time of flight be?

Answer 1

Explanation:

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Answer 2

The time of flight is 1.02 seconds.

Given:

Velocity μ = 10 m/s

Angle = 30°

To find: Time of flight

Solution:

We know that,

Time of flight for projectile = (2μ sinθ​)/g

Here, μ = 10 (given)

θ = 30° ⇒ sinθ = 1/2

g = 9.8 (constant)

⇒ Time of flight of projectile = (2 x 10 x 1/2)/9.8

= 10/9.8 = 1.02 seconds

∴ The time of flight is 1.02 seconds.

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