à body is projected question
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Let A be Angle of projection,
And B be at some instant of time t.
You can use this formula,
tanB = (u sinA - gt )/ u cosA
tanB = (30 × sin30 - 10 × 1.5) / 30 × cos30
tanB = (15-15)/15
tanB = 0
That, means after 1.5sec the projetile is at highest point and making 0° angle with horizontal.
And B be at some instant of time t.
You can use this formula,
tanB = (u sinA - gt )/ u cosA
tanB = (30 × sin30 - 10 × 1.5) / 30 × cos30
tanB = (15-15)/15
tanB = 0
That, means after 1.5sec the projetile is at highest point and making 0° angle with horizontal.
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