A particle starts from the origin at t = 0 with an initial velocity of 3.0 i ^ m / s and moves in the x - y…

A particle starts from the origin at t=0 with an initial velocity of 3.0i^m/s and moves in the x-y plane with a constant acceleration 6.0i^+4.0j^m/s2. The x- coordinate of the particle at the instant when its y- coordinate is 32m is D meters. The value of D is:
  1. 32
  2. 50
  3. 60
  4. 40

Solution

Sy=uyt+12ayt2
32=0+12×4t2t=4 s
Sx=uxt+12axt2
=3×4+12×6×16
=60 m 

Asked in: JEE Main 2020 (09 Jan Shift 2)

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