When two bodies move toward each other with constant speeds the distance between them decreases at the rate of 6m / sec. If they move in the same direction the distance between them increases at the rate of 4m/sec. Then their speeds are________________?

Related Mcqs:

1. The collision between two bodies be elastic if bodies are_________________?

   A. solid and soft
   B. soft and elastic
   C. solid and hard
   D. hard and elastic

2. The force beared by a wall on which water strikes normally at a speed of 10m/sec and at a discharge of 0.0001m3/sec is__________________?

   A. 1 N
   B. 10 N
   C. 100 N
   D. none

3. If east, west, north, south, up and down are representing the direction of unit vectors, then east x south has the direction along_____________?

   A. West
   B. North
   C. Down
   D. Up

4. The shaft of a motor rotates at a constant angular speed of 360rev/min. Angle turned through in 1 sec in radian is________________?

   A. π
   B. 3π
   C. 6π
   D. 12π

5. When collision between the bodies in a system is inelastic in nature then for system ____________________?

   A. momentum changes but K.E remain conserve
   B. K.E changes but momentum remain conserve
   C. both momentum and K.E changes
   D. both momentum and K.E remain conserve

6. What is the force of attraction between any two bodies by virtue of their masses is called?

   A. Electromagnetic Force
   B. Gravitational Force
   C. Centripetal Force
   D. Nuclear Force

   Submitted by: Nayab Idrees

7. According to equation of continuity A1V1 = A2V2 = constant. The constant is equal to_______________?

   A. Flow rate
   B. Volume of fluid
   C. Mass of fluid
   D. The density of the fluid

8. Boltzman constant K in terms of universal gas constant R and Avagadros number Na is give as_______________?

   A. K = RNa
   B. K = R/Na
   C. K = Na/Ra
   D. K = nRNa

9. A body is falling freely under gravity. How much distance it falls during an interval of time between 1st and 2nd seconds of its motion, taking g=10 ?

   A. 15 m
   B. 20 m
   C. 5 m
   D. 25 m

10. Two automobiles are 150 kilometers apart and traveling toward each other. One automobile is moving at 60km/h and the other is moving at 40km/h mph. In how many hours will they meet?

    A. 2.5
    B. 2.0
    C. 1.75
    D. 1.5
    E. 1.25

    Submitted by: Mansoor Ul Haque