Advertisements
Advertisements
Question
Complete the following sentences:
Joule is the unit of .......
Advertisements
Solution
Joule is the unit of work
APPEARS IN
RELATED QUESTIONS
Define work.
A water pump raises 50 litres of water through a height of 25 m in 5 s. Calculate the power of the pump required.
(Take g = 10 N kg-1 and density of water = 1000 kg m-3)
Define 'joule'.
No work is done by a man moving on a horizontal road while carrying a box on his head. Explain.
An electric motor drives a machine which lifts a mass of 4 kg through a height of 10 m in 5 s at a constant speed. Assuming g = 10 ms-2, calculate
(i) the amount of work done, (ii) the power of the machine.
Fill in the boxe to show the corresponding energy transformation.
A body of mass 60 kg has the momentum 3000 kgm/s-1. Calculate: the speed of the body.
The weights of two bodies are 2.0 N and 2.0 kgf respectively what is the mass of each body?
State whether work is done or not, by writing yes or no, in the following case:
A boy climbs up 20 stairs.
