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A force of 5 N acts on a 15 kg body init...

A force of 5 N acts on a 15 kg body initially at rest. The work done by the force during the first second of motion of the body is

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0.83 J,2.5 J,4.17 J,5W
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NN GHOSH-FRICTION, WORK POWER AND ENERGY-Exercises (B)
  1. A block A of 10 kg rests on a rouch, horizontal table and is connected...

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  2. A block of mass m slides down an inclined right angled trough .If the ...

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  3. A force of 5 N acts on a 15 kg body initially at rest. The work done b...

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  4. The force required to tow boat at a constant velocity is proportional ...

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  5. What power is developed by a grinding machine whose wheel has a radius...

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  6. Consider the system of weights P(1)=1 kg,P(2) = 2 kg,P(3) = 5kg and P(...

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  7. A plane surface, incline at 37^(@) to the horizontal is accelerated ho...

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  8. A weight of mass m=1 kg attached to a spring of force constant k = 20 ...

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  9. M(A) = 3 kg ,M(B) = 4 kg ,M(C) = 8 kg. Coefficient of friction between...

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  10. The total mass of an elevator with a 80 kg man in it is 1000 kg. This ...

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  11. Two masses 1.65 kg and 3.30 kg are joined together by a massles rod pa...

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  12. A body of mass m was slowly hauled up the hill as shown in the fig. by...

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  13. Following are three equations of motion S=ut+(1)/(2)at^(2) v(s)=s...

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  14. An escalator joins one floor with another 10 m above. The escalator is...

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  15. A ball of mass m is projected horizontally with velocity v into the ba...

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  16. A block of mass 2kg slides on a frictionless table with with a speed o...

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  17. An ideal massless spring is compressed by 1 m by a force of 100 N. The...

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  18. Masses M(1),M(2) and M(3) are connected by string of negligible mass w...

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  19. The handles of a table-drawer are equidistant from the sides of the dr...

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  20. A fixed pulley carries a weightless thread with masses m(2) and m(1) a...

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