Subject:
Environmental SciencesAuthor:
katherineCreated:
1 year agoAnswer:
A screw jack whose pitch is 4.4cm is used to raise a body of mass 800kg through a height of 20cm The length of the tommy of the jack is 70cm if the efficiency of the jack is 80% calculate the (I) velocity of the jack(ii) mechanical advantage of the jack (iii) Effort required in raising the body (iv)work done by the effort in raising the body
Author:
mylaqmab
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