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
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.
Similar questions