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Two spherical balls having equal masses with radius of 5cm each are thrown upwards along the same vertical direction at an interval of 3s with the same initial velocity of 35m/s, then these balls collide at a height of………….. m. (Take g = 10 m/s2)

0 8 Views | Posted 3 months ago
Asked by Shiksha User

  • 1 Answer

  • V

    Answered by

    Vishal Baghel | Contributor-Level 10

    3 months ago

    y1 = y2

    => 3 5 t − 1 2 g t 2 = 3 5 ( t − 3 ) − 1 2 g ( t − 3 ) 2

    => 35 × 3 = 1 2 g ( t + t − 3 ) × 3

    105 = 1 0 2 × 3 × ( 2 t − 3 )

    t = 5

    y 1 = 3 5 × 5 − 1 2 × 1 0 × 5 2  

    = 50 m

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