Work , energy ,power

Work and Energy

A) Work and energy have the same units in any given system of measurement B) Work and power have the same ratio of SI unit to C.G.S unit

Work energy theorem is applicable

STATEMENT-1: When a machine gun fires n bullets per second each with kinetic energy k, power of the gun is P = nk STATEMENT-2: Power P = work done/time. STATEMENT-3: For uniform circular motion the instantaneous power delivered by centripetal force is always zero.

Fill in the blank spaces by choosing the correct words from the list given below: direction, joule, work, energy, force Q. Ability to do work is called _____.

Fill in the blank spaces by choosing the correct words from the list given below: direction, joule, work, energy, force Q. _____is the SI unit of work.

Work Energy theorem

Find the dimensional formula of the following question : (a) Density (b) Velocity (c) Acceleration (d) Momentum (e) Force (f) Work of energy (g) Power (h) Pressure

STATEMENT-1: Kilowatt hour is a unit of power STATEMENT-2: Work done energy have same SI units. STATEMENT-3: Dimensions of work is ML^(2)T^(2).

Assertion :- According work energy theorem net work done on a body is equal to change in its kinetic energy. Reason :- The work energy theorem is independent of Newton's second law.