CBSE Class 11-science Answered
Please answer question number 18
Asked by arunavamitra50 | 07 Jul, 2018, 08:27: PM
Expert Answer
when the particle-A and particle-B collides in air, their vertical distance travelled is same.
Let h be the vertical distance where collision is taking place.
Since they are projected at simultaneously, time taken to reach the collision point also same.
Hence, for particle-A,
for particl-B,
from (1) and (2), 60×sin30 = 50×sinα or α = sin-1(3/5)
Answered by Thiyagarajan K | 08 Jul, 2018, 12:08: AM
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