MEDIUM
11th West Bengal Board
IMPORTANT
Earn 100

Explain why tension in a stretched string remains the same all throughout its length if It is at rest.

Important Questions on Newton's Laws of Motion

HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 6 - Newton's Laws of Motion>EXERCISE>Q 13

Explain why tension in a stretched string remains the same all throughout its length if its mass is negligible.

HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 6 - Newton's Laws of Motion>EXERCISE>Q 14
Show with proper diagram and explanation how tension varies along the length of a massive uniform string, when it is pulled at one of its end over a horizontal smooth ground.
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 6 - Newton's Laws of Motion>EXERCISE>Q 15
Two boxes of unequal masses M and mM>m are resting on a smooth ground touching each other. Calculate the forces of contact, when the two are pushed first from one side and then from the other.
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 6 - Newton's Laws of Motion>EXERCISE>Q 16
Prove that the velocity of particle is observed to be different from different inertial frames, but acceleration has the same value.
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 6 - Newton's Laws of Motion>EXERCISE>Q 17
Explain clearly why does pseudo force arise when the motion of a particle is studied from an accelerated frame of reference.
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 6 - Newton's Laws of Motion>EXERCISE>Q 1
A force of 100 N acts on a body of mass 25 kg for 5 second. What will be the velocity produced ?
 
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 6 - Newton's Laws of Motion>EXERCISE>Q 2
A body of mass 60 kg falls downwards with an acceleration of 7.2 ms-2 when an upward force acts on it. Find the magnitude of the force. g=9.8 ms-2.
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 6 - Newton's Laws of Motion>EXERCISE>Q 3
A hose-pipe, whose nozzle area is 100 cm2, is throwing water at the rate of 20 cms-1 against a rigid wall. If the water be striking normally on the wall and the velocity of water perpendicular to the wall after striking be zero, find the force exerted on the wall.