Physics, asked by bhanu5841, 11 months ago

Two particles P and Q simultaneously start
moving from point A with velocities 15m/s
and 20m/s respectively. The two particles
move with acceleration equal in magnitude
but opposite in direction. When P overtakes
O at Bits velocity is 30m/s. The velocity of Q
at point B will be​

Answers

Answered by Agastya0606
5

Given: Two particles P and Q simultaneously start  moving from point A with velocities 15 m/s  and 20 m/s respectively. The two particles  move with acceleration equal in magnitude  but opposite in direction.

To find: The velocity of Q  at point B ?

Solution:

  • Now we have given two particles P and Q simultaneously start  moving from point A with velocities 15 m/s  and 20 m/s respectively.
  • Now we know the formula:

             v = u + at

  • For P, we have:

             30 = 15 + at .............(i)

  • For Q, we have:

             v = 20 - at  ..................(ii)

  • Solving i and ii, we get:

              30 = 15 + at

             + v   = 20 - at

               30 + v = 35

             v = 5 m/s

Answer:

       So the velocity of Q  at point B is 5 m/s.

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