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A mass of 10 kg is suspended vertically by a rope from the roof. When a horizontal force is applied on the rope at some point, the rope deviated at an angle of 45^∘ at the roof point. If the suspended mass is at equilibrium, the magnitude of the force applied is (g=10ms^−2)
23
Oct
A mass of 10 kg is suspended vertically by a rope from the roof. When a horizontal force is applied on the rope at some point, the rope deviated at an angle of 45^∘ at the roof point. If the suspended mass is at equilibrium, the magnitude of the force applied is (g=10ms^−2) A mass [...]
A block of mass 10 kg is kept on a rough inclined plane as shown in the figure. A force of 3 N is applied on the block. The coefficient of static friction between the plane and the block is 0.6 What should be the minimum value of force P, such that the block does not move downward? (take g=10ms^−2)
23
Oct
A block of mass 10 kg is kept on a rough inclined plane as shown in the figure. A force of 3 N is applied on the block. The coefficient of static friction between the plane and the block is 0.6 What should be the minimum value of force P, such that the block does [...]
A block of mass 5 kg is (i) pushed in case (A) and (ii) pulled in case (B), by a force F = 20 N, making an angle of 30^∘ with the horizontal, as shown in the figures. The coefficient of friction between the block and floor is μ=0.2 . The difference between the accelerations of the block, in case (B) and case (A) will be: (g=10ms^−2)
23
Oct
A block of mass 5 kg is (i) pushed in case (A) and (ii) pulled in case (B), by a force F = 20 N, making an angle of 30^∘ with the horizontal, as shown in the figures. The coefficient of friction between the block and floor is μ=0.2 . The difference between the accelerations [...]
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A block of mass 5 kg is (i) pushed in case (A) and (ii) pulled in case (B) ,
as shown in the figures. The coefficient of friction between the block and floor is μ=0.2 . The difference between the accelerations of the block ,
by a force F = 20 N ,
in case (B) and case (A) will be: (g=10ms^−2) ,
making an angle of 30^∘ with the horizontal ,
Two blocks A and B of masses mA=1kg and mB=3kg are kept on the table as shown in figure. The coefficient of friction between A and B is 0.2 and between B and the surface of the table is also 0.2. The maximum force F that can be applied on B horizontally, so that the block A does not slide over the block B is [Take g=10m/s^2]
23
Oct
Two blocks A and B of masses mA=1kg and mB=3kg are kept on the table as shown in figure. The coefficient of friction between A and B is 0.2 and between B and the surface of the table is also 0.2. The maximum force F that can be applied on B horizontally, so that the [...]
A ball is thrown vertically up taken as + z-axis from the ground. The correct momentum-height p-h diagram is :
23
Oct
A ball is thrown vertically up taken as + z-axis from the ground. The correct momentum-height p-h diagram is : A ball is thrown vertically up taken as + z-axis from the ground. The correct momentum-height p-h diagram is : October 23, 2020 Category: Chapter 3 - Laws of Motion , JEE Mains Physics 2002-2019 [...]
A boy playing on the roof of a 10m high building throws a ball with a speed of 10m/s at an angle of 30(∘) with the horizontal. How far from the throwing point will the ball be at the height of 10m from the ground ? [g=10m/s^2,sin30∘=1/2,cos30∘=3–√2]
23
Oct
A boy playing on the roof of a 10m high building throws a ball with a speed of 10m/s at an angle of 30(∘) with the horizontal. How far from the throwing point will the ball be at the height of 10m from the ground ? [g=10m/s^2,sin30∘=1/2,cos30∘=3–√2] A small particle of mass m is projected [...]
A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle. The motion of the particle takes place in a plane. It follows that
23
Oct
A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle. The motion of the particle takes place in a plane. It follows that A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle. [...]
A body is at rest at x=0 . At t=0, it starts moving in the positive x−direction with a constant acceleration . At the same instant another body passes through x=0 moving in the positive x−direction with a constant speed . The position of the first body is given by x1(t) after time ‘t’, and that of the second body by x2(t) after the same time interval . which of the following graphs correctly describes (x1−x2) as a function of time ‘t’ ?
23
Oct
A body is at rest at x=0 . At t=0, it starts moving in the positive x−direction with a constant acceleration . At the same instant another body passes through x=0 moving in the positive x−direction with a constant speed . The position of the first body is given by x1(t) after time ‘t’, and [...]
A point p moves in counter – clockwise direction on a circular path as shown in the figure . The movement of ‘p’ is such that it sweeps out in the figure . The movement of ‘p’ is such that it sweeps out a length s=t^3+5 , where s is in metres and t is in seconds . The radius of the path is 20m . The acceleration of ‘P’ when t=2s is nearly .
23
Oct
A point p moves in counter – clockwise direction on a circular path as shown in the figure . The movement of ‘p’ is such that it sweeps out in the figure . The movement of ‘p’ is such that it sweeps out a length s=t^3+5 , where s is in metres and t is [...]
A small particle of mass m is projected at an angle θ with x-axis with initial velocity υ0 in x-y plane as shown in Fig. At a same time t
23
Oct
A small particle of mass m is projected at an angle θ with x-axis with initial velocity υ0 in x-y plane as shown in Fig. At a same time t A small particle of mass m is projected at an angle θ with x-axis with initial velocity υ0 in x-y plane as shown in Fig. [...]