NEET Class neet Answered
doubt
Asked by pandasubhanit | 07 Apr, 2024, 07:42: AM
Expert Answer
Let u be intial projection velocity with initial projection angle 30o .
vertical h displacement at time t is
If vertical displacements are equal at t= 1 s and at t = 3s , then we have
( u sin30) ( 3 -1 ) = (1/2) × 10 × [ 9 - 1 ]
hence we get u = 40 m/s
Answered by Thiyagarajan K | 07 Apr, 2024, 10:31: AM
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