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  1. Thought blocker

    Physics: Post your doubts here!

    9) Initial m = Final m mv + 0 = 2mx (note: after the bodies stick, their masses combine. Let their combined speed be 'x'). mv = 2mx x = v/2 (m cancel out) Since the initial momentum is mv, the final momentum must be the same, so its mv also. K.E after is given by, 0.5 * (2m) * (v/2)^2 =...
  2. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

    What about rest ? 36 and 38 ?
  3. Thought blocker

    Physics: Post your doubts here!

    Explained already :)
  4. Thought blocker

    Physics: Post your doubts here!

    7) Both the other quantities are velocities. Thus X should represent the velocity due to the force F. Answer is thus C, as product of a and t would give us the velocity due to that acceleration for the specified time. 33) V1= 5000/ (5000+5000) x 2 = 1V then V2= 3000/ (3000 + 2000) x 2 = 1.2 so...
  5. Thought blocker

    Physics: Post your doubts here!

    The tension in the rope needs to balance out the weight of the student acting downwards, so since the total tension needs to be opposite and equal to the weight, Let tension in rope on left side be T1 and the tension on rope on right side T2 and :. Total tension = T1sino + T2sino add them up...
  6. Thought blocker

    Physics: Post your doubts here!

    15) Well hope you get it :) 35) Find total Resistance = (1/1 + 1/2 + 1/5 ) ^ -1 R = 10/17 now find V in whole circuit --> V = 5* 10/17 = 50/17 Now at 2 ohm resistor find I 50/17 / = 1.5A so A :)
  7. Thought blocker

    Physics: Post your doubts here!

    Answer is B, very basic thing. Read Chapter 13 - David sang Course book :) If you dont get it, temme I'd love to explain you :)
  8. Thought blocker

    AS Physics P1 MCQs Preparation Thread.

    Oops wrong thread :P
  9. Thought blocker

    AS Physics P1 MCQs Preparation Thread.

    Look there is one formula that says V = IR It means V ∝ I and V 1/∝ to R Keep this formula in MIND, V = IR so I = V/R, so R = V/I any formula you have same thing --> V ∝ I and V 1/∝ to R
  10. Thought blocker

    AS Physics P1 MCQs Preparation Thread.

    C ? look ... this question deals with relative speeds rather than just momentum.... in a perfectly elastic collision, the relative speed of approach is equal to the relative speed of separation.. but what is meant by relative speed of the 2 objects.... imagine u are moving in a car at a speed of...
  11. Thought blocker

    AS Physics P1 MCQs Preparation Thread.

    lets see the motion in XY initial velocity at x=v1 final velocity at y=v2 average velocity=distance/time (V1+V2)/2=40/12 equation 1 simplifying it we get V1+V2=6.67 now consider motion in XZ initial velocity at x=v1 final velocity=v3 V1+V2/2=(40+40)/(12+6) simplifying it we get V1+V3=8.89...
  12. Thought blocker

    lol :P

    lol :P
  13. Thought blocker

    AS Physics P1 MCQs Preparation Thread.

    10) Look firstly we'll find accn from newtons 2nd law f=ma 60=30a a= deceleration a= -2ms-2 (negative sign indicates that its declaration) Now we'll use, a = (Vf - Vi)/t to get Vf -2 = (Vf - 3)/0.50 Vf = 2m/s = C
  14. Thought blocker

    AS Physics P1 MCQs Preparation Thread.

    SO MANY THING TO SOLVE!!!!!!!!! BUT LATER!
  15. Thought blocker

    <----------------------- Starring at your heart ♥

    <----------------------- Starring at your heart ♥
  16. Thought blocker

    <------- Awesome photography :)

    <------- Awesome photography :)
  17. Thought blocker

    Sup ?

    Sup ?
  18. Thought blocker

    :)

    :)
  19. Thought blocker

    :P

    :P
  20. Thought blocker

    Ofcourse :)

    Ofcourse :)
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