Advertisements
Advertisements
प्रश्न
What are the S.I. and C.G.S units of work? How are they related? Establish the relationship.
Advertisements
उत्तर
S.I unit of work is Joule.
C.G.S unit of work is erg.
Relation between joule and erg:
1 joule = 1 N × 1 m
But 1 N = 105 dyne
And 1 m = 100 cm = 102 cm
Hence, 1 joule = 105 dyne × 102 cm
= 107 dyne × cm = 107 erg
Thus, 1 Joule = 107 erg
APPEARS IN
संबंधित प्रश्न
Draw a simplified diagram of a lemon crusher, indicting of load and effort
How is the unit horsepower related to the S.I. unit of power?
State the factors on which moment of force about a point depends.
What do you mean by equilibrium of a body?
The moment of a force 10 N about a point 0 is 4 Nm. Calculate the distance of point of application of force from the point 0.
How much force is applied on a body when 150 J of work is done in displacing the body through a distance of 10 m in the direction of the force?
Work done by a force is equal to the product of ....... and ....
A man spends 7.4 kJ energy in displacing a body by 74 m in the direction in which he applies force, in 2.5 s. Calculate the power spent (in H.P) by the man.
Relate 1 KWh (kilowatt hour) with joule.
A boy weighing 50 kgf climbs up from the first floor at a height of 3 m above the ground to the third floor at a height of 9 m above the ground. What will be the increase in his gravitational potential energy? (Take g = 10 N kg-1).
