Chapter 4 – Laws of Motion
A block of mass M is held against a rough vertical wall by pressing it with a finger. If the coefficient of friction between the block and the wall is μ and the acceleration due to gravity is g, Calculate the minimum force required to be applied by the finger to hold the block against the wall?
09
Nov
A block of mass M is held against a rough vertical wall by pressing it with a finger. If the coefficient of friction between the block and the wall is μ and the acceleration due to gravity is g, Calculate the minimum force required to be applied by the finger to hold the block against [...]
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A block of mass M is held against a rough vertical wall by pressing it with a finger. If the coefficient of friction between the block and the wall is μ and the acceleration due to gravity is g ,
Calculate the minimum force required to be applied by the finger to hold the block against the wall? ,
A mass of 2kg is suspended with thread AB (figure) Thread CD of the same type is attached to the other end of 2 kg mass. Lower thread is pulled gradually, harder and harder in the downward gradually, harder and harder in the downward direction so as to apply force on AB. which of the threads will break and why?
09
Nov
A mass of 2kg is suspended with thread AB (figure) Thread CD of the same type is attached to the other end of 2 kg mass. Lower thread is pulled gradually, harder and harder in the downward gradually, harder and harder in the downward direction so as to apply force on AB. which of the [...]
Tags:
A mass of 2kg is suspended with thread AB (figure) Thread CD of the same type is attached to the other end of 2 kg mass. Lower thread is pulled gradually ,
harder and harder in the downward direction so as to apply force on AB. which of the threads will break and why? ,
harder and harder in the downward gradually ,
A woman throws an object of mass 500 g with a speed of 25 m/s. (i) What is the impulse imparted to the object? (ii) If the object hits a wall and rebounds with half the original speed, what is the change in momentum of the object?
09
Nov
A woman throws an object of mass 500 g with a speed of 25 m/s. (i) What is the impulse imparted to the object? (ii) If the object hits a wall and rebounds with half the original speed, what is the change in momentum of the object? A woman throws an object of mass 500 [...]
In a figure a body A of mass m slides on plane inclined at angle θ1 to the horizontal and μ is the coefficient of friction between A and the plane. A is connected by a light string passing over a frictionless pulley to another body B, also of mass m, sliding on a frictionless plane inclined at an angle θ2 to the horizontal. Which of the following statements are true?
09
Nov
In a figure a body A of mass m slides on plane inclined at angle θ1 to the horizontal and μ is the coefficient of friction between A and the plane. A is connected by a light string passing over a frictionless pulley to another body B, also of mass m, sliding on a frictionless [...]
Mass m1 moves on a slope making an angle θ with the horizontal and is attached to mass m2 by a string passing over a frictionless pulley as shown in Fig. 5.2. The co-efficient of friction between m1 and the sloping surface is μ.Which of the following statements are true?
09
Nov
Mass m1 moves on a slope making an angle θ with the horizontal and is attached to mass m2 by a string passing over a frictionless pulley as shown in Fig. 5.2. The co-efficient of friction between m1 and the sloping surface is μ.Which of the following statements are true? A cricket ball of mass [...]
In the figure the coefficient of friction between the floor and the body B is 0.1. The coefficient of friction between the bodies B and A is 0.2. A force F is applied as shown on B. The mass of A is m/2 and B is m. Which of the following statements are true?
09
Nov
In the figure the coefficient of friction between the floor and the body B is 0.1. The coefficient of friction between the bodies B and A is 0.2. A force F is applied as shown on B. The mass of A is m/2 and B is m. Which of the following statements are true? A [...]
The motion of a particle of mass m is given by x=0 for t
09
Nov
The motion of a particle of mass m is given by x=0 for t The motion of a particle of mass m is given by x=0 for t November 9, 2020 Category: Chapter 4 - Laws of Motion , NCERT Exemplar Class 11 , Physics ,
A cricket ball of mass 150 g has an initial velocity (3iˆ+ 4jˆ)ms^−1 and a final velocity v =−(3iˆ+4jˆ)ms^−1 after being hit. The change in momentum (final momentum initial momentum) is (in kg ms^−1)
31
Oct
A cricket ball of mass 150 g has an initial velocity (3iˆ+ 4jˆ)ms^−1 and a final velocity v =−(3iˆ+4jˆ)ms^−1 after being hit. The change in momentum (final momentum initial momentum) is (in kg ms^−1) A cricket ball of mass 150 g has an initial velocity (3iˆ+ 4jˆ)ms^−1 and a final velocity v =−(3iˆ+4jˆ)ms^−1 after being [...]