(a) What is the mass of block C ifblock B is moving to the right and speeding up
ID: 1761176 • Letter: #
Question
(a) What is the mass of block C ifblock B is moving to the right and speeding up with anacceleration 2.00 m/s2?kg
(b) What is the tension in each cord when block B has thisacceleration? TA = N TC = N TA = N TC = N Block A in the figure below has a mass of 3.80 kg and block B has mass 12.8 kg. The coefficient of kinetic frictionbetween block B and the horizontal surface is 0.25. (a) What is the mass of block C ifblock B is moving to the right and speeding up with anacceleration 2.00 m/s2? kg (b) What is the tension in each cord when block B has thisacceleration?
Explanation / Answer
GIven that mA = 3.80kg mB = 12.8 kg = 0.25 a = 2.00 m/s2 Let T be the tension in the wire. For Block A TA- mAg =mAa The tension TA= mAa + mAg For Block B TC- TA -f = mBa Tension TC =TA +mBg +mBa For block C mCg-TC = mCa The mass of the block C is mC= TC /(g+a) Substitute the values.Related Questions
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