Work Energy Power

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Across
  1. 1. THE PERCENTAGE INCREASE IN THE KINETIC ENERGY WHEN LINEAR MOMENTUM INCREASES 3 PERCENT
  2. 3. THE INITIAL SPEED OF A BALL THROWN DOWNWARDS FROM 10 M THAT AFTER LOOSING 50% OF ITS ENERGY ON IMPACT RISES TO 10m
  3. 5. POWER, IN Kw, GIVEN BY ENGINE OF A 1500 kg CAR MOVING AT CONSTANT SPEED OF 5m/s AGAINST A FRICTIONAL FORCE OF 1600 N
  4. 7. MINIMUM WORK NEEDED TO BRING ON THE SMOOTH TABLE THE 1/3 RD PART OF AN 8.4m, 15 kg CHAIN THAT IS HANGING FROM EDGE
  5. 9. THE TIME OF A SOLID BALL, ρ = 0.5 BEING SUBMERGED AFTER ITS FREE FALL FROM A HEIGHT OF 20 m AND THEREBY ENTERING WATER.
  6. 11. THE MASS OF THE STATIONARY BLOCK ON FULLY ELASTIC COLLISION WITH WHICH A 3 kg BLOCK LOOSES 8/9 TH OF ITS ENERGY
  7. 12. THE VELOCITY OF A 1 kg BODY AT 3 SECONDS FROM START IF POWER SUPPLIED TO IT VARIES AS 18*(TIME IN SECONDS FROM START)2
  8. 15. THE POWER, IN MW, DELIVERED TO A TURBINE BY WATER FALLING AT A RATE OF 1000kg/s FROM A HEIGHT OF 200 m
  9. 16. THE POTENTIAL ENERGY OF A 10 kg √2 m LONG UNIFORM ROD INCLINED AT 45⁰ TO THE HORIZON WITH ONE END ON GROUND
  10. 17. THE VALUE OF k IF THE WORK DONE BY THE FORCE F = (3i + 4j) ACTING ON A PARTICLE MOVING ALONG THE LINE 4y + kx =3 IS ZERO
  11. 18. POWER, IN Kw, OF ENGINE OF A 1500 kg CAR MOVING AT 5m/s AGAINST A FRICTIONAL FORCE OF 1500 N AND AN INCLINE OF 1 IN √99
Down
  1. 2. THE WORK DONE BY THE FORCE, F =10i/v ACTING ON A BODY MOVING ALONG THE x AXIS, IN 9 SECONDS
  2. 4. THE WORK DONE BY THE POSITION DEPENDENT FORCE F = (7 -2x + 3x2) i IN MOVING A 2 kg BODY FROM x = 3.5 TO x = 5
  3. 6. THE HEIGHT TO WHICH A BODY RISES AFTER HAVING FALLEN FREELY FROM 10 m AND LOOSING 30% OF ITS ENERGY ON IMPACT
  4. 7. WORK DONE BY A FORCE THAT MOVES A BODY OF 0.5 kg AS PER THE RELATION x = 3t2 +4t +5 IN FIRST 2 SECONDS
  5. 8. WHAT IS THE CONSTANT FRICTION FORCE THAT STOPS A BODY HAVING KINETIC ENERGY OF 100 J IN 5 m
  6. 10. THE MASS OF A BLOCK WHICH ON FALLING ON A MASSLESS SPRING (k =100 N/m ) FROM 1 m HEIGHT CAUSES COMPRESSION OF 0.56 m
  7. 13. HOW MANY TONS OF WATER MUST FALL FROM A 10 M HIGH DAM ON TURBINE TO PRODUCE 1 MW OF POWER
  8. 14. THE TIME TAKEN BY AN ENGINE DELIVERING 10 Kw TO LIFT A MASS OF 400 Kg TO A HEIGHT OF 40 m
  9. 17. THE WORK DONE BY A FORCE, ACTING ON A 6 kg BODY DISPLACING IT ALONG THE x AXIS AS PER x = t2/4 , IN FIRST 4 SECONDS