Is acceleration a force? If a block is on a frictionless plane connected by a co

Question

Is acceleration a force? If a block is on a frictionless plane connected by a cord over a massless, frictionless pulley to a second block, what would the magnitude of acceleration be? Would the tension forces cancel out?

Explanation / Answer

Is acceleration a force? no from newtons second law F=ma acceleration=a=Force/mass If a block is on a frictionless plane connected by a cord over a mass less, frictionless pulley to a second block, what would the magnitude of acceleration be? let the mass of block which is on plane be m and that of hanging block be M also let M>m tension force =T as the cord has no mass and no friction tension force will be the same thought the string.for the body on the plane the only horizontal forceis tension so T=ma for the hanging body T-Mg=-Ma negative sign indicates that the body accelerates in the negative y direction.from the above equations for tension we can arrive at a=Mg/(m+M) Would the tension forces cancel out? No

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