Answer to Question #155168 in Mechanical Engineering for Shashi

Question #155168

A roller of radius r = 300 mm and weight 2000 N is to be pulled over a curb of height  150 mm (see Fig.1) by a horizontal force P applied to the end of a string wound tightly  around the circumference of the roller. Find the magnitude of P required to start the roller move over the curb. 



1
Expert's answer
2021-01-19T02:31:02-0500

A AP = JOAR - op2

150-(r-15072 300²-(3004502 AP = 260mm 200oN * Take moment arround the point A for the limiting equilibrium. AA -Px (r+ 0p) + 2000x AP = 0 -P? (300 +150) + 2000x260=0 P= 1155.6N


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Comments

Mrunal
11.06.21, 04:54

How u get that 260?

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