Physics
The diagram below shows a claw hammer used to remove a nail:
(i) To which class of lever does it belong ?
(ii) Give one more example of the same class of lever mentioned by you in (i) for which the mechanical advantage is greater than one.
Related Questions
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(ii) State the S.I. unit of moment of couple.
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(ii) State one important factor which affects the critical angle of a given medium.
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(ii) How is calorie related to the S.I. unit of that quantity?