MEDIUM
Stage 1 & 2
IMPORTANT
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You are marooned on a frictionless horizontal surface cannot exert any horizontal force by pushing against the surface. How can you get out of it ? 

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Important Questions on Force and Laws of Motion

MEDIUM
Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 2 - Force and Laws of Motion>Target Exercise>Q 12

The masses of 10 Kg and 20 Kg respectively are connected by a massless spring. A force of 200 N acts on 20 Kg mass. At the instant shown, the 10 Kg mass has an acceleration of 12 ms-2. What is the acceleration of 20 Kg mass? 

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HARD
Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 2 - Force and Laws of Motion>Target Exercise>Q 13
A rocket can go vertically upwards in earth's atmosphere because
HARD
Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 2 - Force and Laws of Motion>Target Exercise>Q 14
In which of the following case force may not be required to keep 
HARD
Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 2 - Force and Laws of Motion>Target Exercise>Q 15

A single horizontal force F is applied to a block of mass M1 which is in contact with another block of mass M2. If the surface are frictionless, the force between the block is

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HARD
Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 2 - Force and Laws of Motion>Target Exercise>Q 16

Figure shows the displacement of a particle going along the x-axis as a function of time. The force acting on the particle is zero, in the region

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(i) AB   (ii) BC    (iii) CD    (iv) DE