A mass Mis initially at rest on a horizontal surface, (staticfriction=0.30) and

Question

A mass Mis initially at rest on a horizontal surface, (staticfriction=0.30) and (kinetic friction=0.20) . A horizontal stringthen pulls M with a tension T. Forces below are magnitudes.(markeach below as true or false)

1. If M does not accelerate, then T is greater than or equal to thecoefficient of kinetic friction

2.T equals the coeffictient of static friction if m remains atrest

3. M will accelerate if T exceeds the coefficient of staticfriction

4.N equals Mg

5. M will accelerate if T exceeds the coefficient of kineticfriction

6.The net force on M(if M does not move) is the coefficient ofkinetic friction A mass Mis initially at rest on a horizontal surface, (staticfriction=0.30) and (kinetic friction=0.20) . A horizontal stringthen pulls M with a tension T. Forces below are magnitudes.(markeach below as true or false)

1. If M does not accelerate, then T is greater than or equal to thecoefficient of kinetic friction

2.T equals the coeffictient of static friction if m remains atrest

3. M will accelerate if T exceeds the coefficient of staticfriction

4.N equals Mg

5. M will accelerate if T exceeds the coefficient of kineticfriction

6.The net force on M(if M does not move) is the coefficient ofkinetic friction

Explanation / Answer

(1)    false (2)    false (3)    true (4)    false (5)    true (6)    false    false (3)    true (4)    false (5)    true (6)    false (3)    true (4)    false (5)    true (6)    false (4)    false (5)    true (6)    false (5)    true (6)    false (6)    false

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