## Newton Laws Of Motion Quiz-8

As per analysis for previous years, it has been observed that students preparing for NEET find Physics out of all the sections to be complex to handle and the majority of them are not able to comprehend the reason behind it. This problem arises especially because these aspirants appearing for the examination are more inclined to have a keen interest in Biology due to their medical background.

Furthermore, sections such as Physics are dominantly based on theories, laws, numerical in comparison to a section of Biology which is more of fact-based, life sciences, and includes substantial explanations. By using the table given below, you easily and directly access to the topics and respective links of MCQs. Moreover, to make learning smooth and efficient, all the questions come with their supportive solutions to make utilization of time even more productive. Students will be covered for all their studies as the topics are available from basics to even the most advanced.

Q1. In an elevator moving vertically up with an acceleration g, the force exerted on the floor by a passenger of mass M is
•  Mg
•  1/2Mg
•  0
•  2Mg
Solution

Q2.A 2 kg block is lying on a smooth table which is connected by a body of mass 1 kg by a string which passes through a pulley. The 1 kg mass is hanging vertically. The acceleration of block and tension in the string will be
•  3.27m/s2,6.54 N
•  4.38m/s2,6.54 N
•  3.27m/s2,9.86 N
•  4.38m/s2,9.86 N
Solution

Q3.  A rod length AB is moving with ends remaining in contact with frictionless wall and floor. If at the instant shown, the velocity of end B is 3 ms-1 towards negative x-direction, then magnitude of velocity of end A will be

•  3 ms-1
•  √3 ms-1
•  1.5 ms-1
•  2 ms-1
Solution

Q4. A 100 kg block is suspended with the help of three string A,Band C. The tension in the string C is

•  50 gN
•  100 gN
•  20 gN
•  20 gN
Solution

Q5.A shell at rest at the origin explodes into three fragments of masses 1 kg,2kg and mkg. The 1 kg and 2 kg pieces fly off with speeds off 5ms-1 along x-axis and 6ms-1 along y-axis respectively. If the mkg piece files off with a speed of 6.5 ms-1, the total mass of the shell must be
•  4 kg
•  5 kg
•  3.5 kg
•  4.5 kg
Solution

Q6. A body of mass 3 kg is acted on by a force which varies as shown in the graph below. The momentum acquired is given by

•  Zero
•  5 N-s
• 30 N-s
•  50 N-s
Solution

Q7.A rocket with a lift-off mass 105 kg is blasted upward with an initial acceleration of 5 ms-2. If g=10 ms-2, then the initial thrust of the blast is
•  1.5×102N
•  1.5×103N
•  1.5×105N
•  1.5×106N
Solution

Q8.A monkey of mass 20 kg is holding a vertical rope.The rope will not break when a mass of 25 kg is suspended from it but will break if the mass exceeds 25 kg. What is the maximum acceleration with which the monkey can climb up along the rope (g=9.8 m/s2)
•  10 m/s2
•  25 m/s2
•  2.5 m/s2
•  5 m/s2
Solution

Q9.A satellite in force-free space sweeps stationary interplanetary dust at rate dM/dt=Î±v, where M is the mass, v is the velocity of satellite and Î± is a constant What is the deceleration of the satellite
•  (-2Î±v2)/M
•  -Î±v2/M
•  -Î±v2
•  (Î±v2)/M
Solution

Q10. A car starts from rest to cover a distance s. The coefficient of friction between the road and the tyres is Î¼. The minimum time in which the car can cover the distance is proportional to
•  Î¼
•  √Î¼
•  1/Î¼
• 1/√Î¼
Solution

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