a body is projected with initial velocity of 10root 3m/sec making an angle 30 with the horizontal the velocity of the particle at the highest point of the trajectory is (a)15 m/sec B
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Answer:
15 m/s [∵ v = u cosθ]
Explanation:
Given:
u = 10 m/s
θ = 30°
At maximum height vertical component of velocity is zero
⇒ only horizontal component is present
⇒ v = u cosθ
= 10 × cos30°
= 10 ×
= 5 × 3 m/s
= 15 m/s
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