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प्रश्न
Explain the following:
It is easier to turn a steering wheel with large diameter than a steering wheel with small diameter.
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उत्तर
संबंधित प्रश्न
A machine raises a load of 750 N through a height of 16 m in 5 s. calculate:
- energy spent by machine,
- power at which the machine works.
What are the units of (a) work, and (b) energy?
P, Q and R are three forces which act as shown in fig.
The point O lies in the same plane. Given, P = Q = R = 10N
(i) Which force has the least moment about O? Give a reason.
(ii)Which force has the greatest moment about O? Give a reason.
Define 'joule'.
Give two examples of work done.
Complete the following sentences:
1 H.P. = ........ W.
In the following case write yes, if the work is being done and no if no work is being done.
A coolie standing with a heavy load on his head
In the following case write yes, if the work is being done and no if no work is being done.
A boy climbing up a staircase.
