1.

The coefficients of static and dynamic friction are 0.7 and 0.4. The minimum force required to create motion is applied on a body and if it is further continued, the acceleration attained by the body in ms^(-2) is (g = 10m//s^(-2))

Answer»

7
4
3
Zero

Solution :`F_("NET")=ma, F_(R)=f_(s)-f_(K), a=(mu_(s)-mu_(K))g`


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