posted by Cori Smith on .
A mass M is initially at rest on a horizontal surface, μs=0.30 and μk=0.20 . A horizontal string then pulls M with a tension T. N is the normal component of the contact force. All quantities below are magnitudes. Answers are either true or false.
1)The total force on M is μkN if M remains at rest.
2)If M does not accelerate, then T ≤ μsN
3)M will accelerate if T exceeds μkN
4)T equals μkN if M remains at rest.
5)The value of N equals Mg
6)M will accelerate if T exceed μsN