Motion of Body Connected Together
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
LAWS OF MOTION (ADDITIONAL)

372236 Block A of mass of \(2 \mathrm{~kg}\) is placed over block B of mass \(8 \mathrm{~kg}\). The combination is placed over a rough horizontal surface. Coefficient of friction between \(B\) and the floor is 0.5 . Coefficient of friction between blocks \(A\) and \(B\) is 0.4 . A horizontal force of \(10 \mathrm{~N}\) is applied on block \(B\). The force of friction between blocks \(A\) and \(B\) is \(\left(g=10 \mathbf{m s}^{-2}\right)\)

1 \(100 \mathrm{~N}\)
2 \(40 \mathrm{~N}\)
3 \(50 \mathrm{~N}\)
4 Zero
LAWS OF MOTION (ADDITIONAL)

372237 A block of weight \(4 \mathrm{~kg}\) is resting on a smooth horizontal plane. If it is struck by a jet of water at the rate of \(2 \mathrm{kgs}^{-1}\) and at the speed of \(10 \mathrm{~ms}^{-1}\) , then the initial acceleration of the block is

1 \(15 \mathrm{~ms}^{-2}\)
2 \(10 \mathrm{~ms}^{-2}\)
3 \(2.5 \mathrm{~ms}^{-2}\)
4 \(1 \mathrm{~ms}^{-2}\)
5 \(5 \mathrm{~ms}^{-2}\)
LAWS OF MOTION (ADDITIONAL)

372238 Three blocks with masses \(\mathrm{m}, 2 \mathrm{~m}\) and \(3 \mathrm{~m}\) are connected by strings, as shown in the figure. After an upward force \(F\) is applied on block \(m\), the masses move upward at constant speed \(v\). What is the net force on the block of mass \(2 \mathrm{~m}\) ? ( \(\mathrm{g}\) is the acceleration due to gravity).

1 zero
2 \(2 \mathrm{mg}\)
3 \(3 \mathrm{mg}\)
4 \(6 \mathrm{mg}\)
LAWS OF MOTION (ADDITIONAL)

372239 Two blocks of \(2 \mathrm{~kg}\) and \(1 \mathrm{~kg}\) are in contact on a frictionless table. If a force of \(3 \mathrm{~N}\) is applied on \(2 \mathrm{~kg}\) block, then the force of contact between the two block will be
\(\xrightarrow{3 \mathrm{~N}} 2 \mathrm{~kg} 1 \mathrm{~kg}\)

1 \(0 \mathrm{~N}\)
2 \(1 \mathrm{~N}\)
3 \(2 \mathrm{~N}\)
4 \(3 \mathrm{~N}\)
[WBJEE-2010]
LAWS OF MOTION (ADDITIONAL)

372236 Block A of mass of \(2 \mathrm{~kg}\) is placed over block B of mass \(8 \mathrm{~kg}\). The combination is placed over a rough horizontal surface. Coefficient of friction between \(B\) and the floor is 0.5 . Coefficient of friction between blocks \(A\) and \(B\) is 0.4 . A horizontal force of \(10 \mathrm{~N}\) is applied on block \(B\). The force of friction between blocks \(A\) and \(B\) is \(\left(g=10 \mathbf{m s}^{-2}\right)\)

1 \(100 \mathrm{~N}\)
2 \(40 \mathrm{~N}\)
3 \(50 \mathrm{~N}\)
4 Zero
LAWS OF MOTION (ADDITIONAL)

372237 A block of weight \(4 \mathrm{~kg}\) is resting on a smooth horizontal plane. If it is struck by a jet of water at the rate of \(2 \mathrm{kgs}^{-1}\) and at the speed of \(10 \mathrm{~ms}^{-1}\) , then the initial acceleration of the block is

1 \(15 \mathrm{~ms}^{-2}\)
2 \(10 \mathrm{~ms}^{-2}\)
3 \(2.5 \mathrm{~ms}^{-2}\)
4 \(1 \mathrm{~ms}^{-2}\)
5 \(5 \mathrm{~ms}^{-2}\)
LAWS OF MOTION (ADDITIONAL)

372238 Three blocks with masses \(\mathrm{m}, 2 \mathrm{~m}\) and \(3 \mathrm{~m}\) are connected by strings, as shown in the figure. After an upward force \(F\) is applied on block \(m\), the masses move upward at constant speed \(v\). What is the net force on the block of mass \(2 \mathrm{~m}\) ? ( \(\mathrm{g}\) is the acceleration due to gravity).

1 zero
2 \(2 \mathrm{mg}\)
3 \(3 \mathrm{mg}\)
4 \(6 \mathrm{mg}\)
LAWS OF MOTION (ADDITIONAL)

372239 Two blocks of \(2 \mathrm{~kg}\) and \(1 \mathrm{~kg}\) are in contact on a frictionless table. If a force of \(3 \mathrm{~N}\) is applied on \(2 \mathrm{~kg}\) block, then the force of contact between the two block will be
\(\xrightarrow{3 \mathrm{~N}} 2 \mathrm{~kg} 1 \mathrm{~kg}\)

1 \(0 \mathrm{~N}\)
2 \(1 \mathrm{~N}\)
3 \(2 \mathrm{~N}\)
4 \(3 \mathrm{~N}\)
[WBJEE-2010]
LAWS OF MOTION (ADDITIONAL)

372236 Block A of mass of \(2 \mathrm{~kg}\) is placed over block B of mass \(8 \mathrm{~kg}\). The combination is placed over a rough horizontal surface. Coefficient of friction between \(B\) and the floor is 0.5 . Coefficient of friction between blocks \(A\) and \(B\) is 0.4 . A horizontal force of \(10 \mathrm{~N}\) is applied on block \(B\). The force of friction between blocks \(A\) and \(B\) is \(\left(g=10 \mathbf{m s}^{-2}\right)\)

1 \(100 \mathrm{~N}\)
2 \(40 \mathrm{~N}\)
3 \(50 \mathrm{~N}\)
4 Zero
LAWS OF MOTION (ADDITIONAL)

372237 A block of weight \(4 \mathrm{~kg}\) is resting on a smooth horizontal plane. If it is struck by a jet of water at the rate of \(2 \mathrm{kgs}^{-1}\) and at the speed of \(10 \mathrm{~ms}^{-1}\) , then the initial acceleration of the block is

1 \(15 \mathrm{~ms}^{-2}\)
2 \(10 \mathrm{~ms}^{-2}\)
3 \(2.5 \mathrm{~ms}^{-2}\)
4 \(1 \mathrm{~ms}^{-2}\)
5 \(5 \mathrm{~ms}^{-2}\)
LAWS OF MOTION (ADDITIONAL)

372238 Three blocks with masses \(\mathrm{m}, 2 \mathrm{~m}\) and \(3 \mathrm{~m}\) are connected by strings, as shown in the figure. After an upward force \(F\) is applied on block \(m\), the masses move upward at constant speed \(v\). What is the net force on the block of mass \(2 \mathrm{~m}\) ? ( \(\mathrm{g}\) is the acceleration due to gravity).

1 zero
2 \(2 \mathrm{mg}\)
3 \(3 \mathrm{mg}\)
4 \(6 \mathrm{mg}\)
LAWS OF MOTION (ADDITIONAL)

372239 Two blocks of \(2 \mathrm{~kg}\) and \(1 \mathrm{~kg}\) are in contact on a frictionless table. If a force of \(3 \mathrm{~N}\) is applied on \(2 \mathrm{~kg}\) block, then the force of contact between the two block will be
\(\xrightarrow{3 \mathrm{~N}} 2 \mathrm{~kg} 1 \mathrm{~kg}\)

1 \(0 \mathrm{~N}\)
2 \(1 \mathrm{~N}\)
3 \(2 \mathrm{~N}\)
4 \(3 \mathrm{~N}\)
[WBJEE-2010]
LAWS OF MOTION (ADDITIONAL)

372236 Block A of mass of \(2 \mathrm{~kg}\) is placed over block B of mass \(8 \mathrm{~kg}\). The combination is placed over a rough horizontal surface. Coefficient of friction between \(B\) and the floor is 0.5 . Coefficient of friction between blocks \(A\) and \(B\) is 0.4 . A horizontal force of \(10 \mathrm{~N}\) is applied on block \(B\). The force of friction between blocks \(A\) and \(B\) is \(\left(g=10 \mathbf{m s}^{-2}\right)\)

1 \(100 \mathrm{~N}\)
2 \(40 \mathrm{~N}\)
3 \(50 \mathrm{~N}\)
4 Zero
LAWS OF MOTION (ADDITIONAL)

372237 A block of weight \(4 \mathrm{~kg}\) is resting on a smooth horizontal plane. If it is struck by a jet of water at the rate of \(2 \mathrm{kgs}^{-1}\) and at the speed of \(10 \mathrm{~ms}^{-1}\) , then the initial acceleration of the block is

1 \(15 \mathrm{~ms}^{-2}\)
2 \(10 \mathrm{~ms}^{-2}\)
3 \(2.5 \mathrm{~ms}^{-2}\)
4 \(1 \mathrm{~ms}^{-2}\)
5 \(5 \mathrm{~ms}^{-2}\)
LAWS OF MOTION (ADDITIONAL)

372238 Three blocks with masses \(\mathrm{m}, 2 \mathrm{~m}\) and \(3 \mathrm{~m}\) are connected by strings, as shown in the figure. After an upward force \(F\) is applied on block \(m\), the masses move upward at constant speed \(v\). What is the net force on the block of mass \(2 \mathrm{~m}\) ? ( \(\mathrm{g}\) is the acceleration due to gravity).

1 zero
2 \(2 \mathrm{mg}\)
3 \(3 \mathrm{mg}\)
4 \(6 \mathrm{mg}\)
LAWS OF MOTION (ADDITIONAL)

372239 Two blocks of \(2 \mathrm{~kg}\) and \(1 \mathrm{~kg}\) are in contact on a frictionless table. If a force of \(3 \mathrm{~N}\) is applied on \(2 \mathrm{~kg}\) block, then the force of contact between the two block will be
\(\xrightarrow{3 \mathrm{~N}} 2 \mathrm{~kg} 1 \mathrm{~kg}\)

1 \(0 \mathrm{~N}\)
2 \(1 \mathrm{~N}\)
3 \(2 \mathrm{~N}\)
4 \(3 \mathrm{~N}\)
[WBJEE-2010]