Per NCERT Example 3.8, the time of flight for the same 28 m/s at 30° projectile is approximately which?
A9.8 s
B1.4 s
C5.0 s
D2.9 s
Answer & Solution
Correct answer: D. 2.9 s
NCERT Ex 3.8(b): T_f = 2 × 28 × sin 30° / 9.8 = 28/9.8 ≈ 2.9 s.
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