A block with mass m1 (which we call block 1) is pulled by a rope with tension T along the ground as shown in the figure where the coefficient of kinetic friction between the ground and the block is  . On top of this block is another block of mass m2 (block 2) which is moving in the same direction as m1 but sliding relative to m1 in the opposite direction ( x –axis ). The coefficient of kinetic friction between the two blocks is  . a) Which of the following can be the free body diagram for block 2? (5 pts.) 1) 2) 3) 4) b) What is the acceleration of block 2 in the horizontal direction ( x – axis )? (5 pts.) 1) 1 2 m g m  2) g 3) 1 2 1 m g m      +   4) 1 1 2 1 T m g m m    + +     c) How many agents of frictional forces are acting on block 1 (i.e. how many surfaces of frictional contact)? (5 pts.) 1) 0 2) 1 3) 2 4) 3 d) What is the acceleration of block 1 in the horizontal direction? (5 pts.) 1) 1 2 m g T −  + 2) 2 1 1 m T g m m −  + 3) 2 1 1 2m T g m m −  + 4) 2 1 1 m T g g m m − 

Question

Store	Original Price of Aquarium ($)
Pets Plus	118
Pet Planet	110

A block with mass m1 (which we call

Open question

New Questions in High School