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The arrangement shown in the diagram is moving in space with an acceleration a=4(hati+hatj)m//s^(2). An ideal spring of natural length l_(0) having spring constant k=50 N//m, is connected to block A. Blocks A and B are connected by an ideal string passing through a frictionless pulley. Mass of each block A and B is equal to m=2kg. (a) Calculate the minimum value of coefficient of friction so that spring remains in its natural length. (b) If mu is reduced to (9//35)^(th) of the original value, calculate the maximum extension of the spring.
23
Aug
The arrangement shown in the diagram is moving in space with an acceleration a=4(hati+hatj)m//s^(2). An ideal spring of natural length l_(0) having spring constant k=50 N//m, is connected to block A. Blocks A and B are connected by an ideal string passing through a frictionless pulley. Mass of each block A and B is equal [...]
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B and C is 1/2. the maximum value of mass of block D so that the blocks A ,
B and C move without slippping over each other is ,
B and C of equal mass m are placed one over the other on a smooth horizontal ground as shown in figure. Coefficient of friction between any two blocks of A ,
The arrangement shown in the diagram is moving in space with an acceleration a=4(hati+hatj)m//s^(2). An ideal spring of natural length l_(0) having spring constant k=50 N//m ,
Three blocks A ,
A spring mass system is held at rest with the spring relaxed at a height (h) above the ground. Determine the minimum value of (H) so that the systen has a tendency to rebound after hitting the ground. Given that the coefficient of restitution between (m_(2)) and ground is zero.
23
Aug
A spring mass system is held at rest with the spring relaxed at a height (h) above the ground. Determine the minimum value of (H) so that the systen has a tendency to rebound after hitting the ground. Given that the coefficient of restitution between (m_(2)) and ground is zero. B and C is 1/2. [...]
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B and C is 1/2. the maximum value of mass of block D so that the blocks A ,
B and C move without slippping over each other is ,
B and C of equal mass m are placed one over the other on a smooth horizontal ground as shown in figure. Coefficient of friction between any two blocks of A ,
Three blocks A ,
tTwo block A and B of mass m and 2m are placed on a fixed triangular wedge are placed on a fixed triangular wedge by massless inextensible string as shown.
23
Aug
tTwo block A and B of mass m and 2m are placed on a fixed triangular wedge are placed on a fixed triangular wedge by massless inextensible string as shown. tTwo block A and B of mass m and 2m are placed on a fixed triangular wedge are placed on a fixed triangular wedge by [...]
A stone is thrown vertically upwards. When stone is at a height half of its maximum height, its speed is 10 m/s; then the maximum height attained by the stone is (g= 10 m/s^2)
23
Aug
A stone is thrown vertically upwards. When stone is at a height half of its maximum height, its speed is 10 m/s; then the maximum height attained by the stone is (g= 10 m/s^2) A stone is thrown vertically upwards. When stone is at a height half of its maximum height its speed is 10 [...]
If a ball is thrown vertically upwards with speed u, the distance covered during the last t second of its ascent is
23
Aug
If a ball is thrown vertically upwards with speed u, the distance covered during the last t second of its ascent is If a ball is thrown vertically upwards with speed u the distance covered during the last t second of its ascent is August 23, 2020 Category: Chapter 2 - Vectors , Chapter 3 [...]
A man throws ball with the same speed vertically upwards one after the other at an interval of 2 seconds. What should be the speed of the throw so that more than two balls are in the sky at any time ? (Given g=9.8m/s2)
23
Aug
A man throws ball with the same speed vertically upwards one after the other at an interval of 2 seconds. What should be the speed of the throw so that more than two balls are in the sky at any time ? (Given g=9.8m/s2) the resultant of A x 0 will be equal to August [...]
A train of 150 m length is going towards north direction at a speed of 10 m/s. A parrot flies a speed of 5 m/s towards south direction parallel to the railway track. The time taken by the parrot to cross the train is
23
Aug
A train of 150 m length is going towards north direction at a speed of 10 m/s. A parrot flies a speed of 5 m/s towards south direction parallel to the railway track. The time taken by the parrot to cross the train is the resultant of A x 0 will be equal to August [...]
In a figure shown a semi-cylinder of radius R is rigidly fixed on a horizontal table of hight lo from the ground such that there is a common edge of the table and the semi- cylinder.
23
Aug
In a figure shown a semi-cylinder of radius R is rigidly fixed on a horizontal table of hight lo from the ground such that there is a common edge of the table and the semi- cylinder. In a figure shown a semi-cylinder of radius R is rigidly fixed on a horizontal table of hight lo [...]
The force F on a sphere of radius r moving in a medium with velocity v is given by F=6πηrv . The dimensions of η are
23
Aug
The force F on a sphere of radius r moving in a medium with velocity v is given by F=6πηrv . The dimensions of η are The force F on a sphere of radius r moving in a medium with velocity v is given by F=6πηrv . The dimensions of η are August 23, 2020 [...]
Two blocks of masses of 0.2 kg and 0.5 kg which are placed 22m apart on a horizontal surface (mu = 0.5) are acted uponby two forces of magnitude 3 Neach as shown in figure in time t = 0 Then the time t at which they collide with each other is
23
Aug
Two blocks of masses of 0.2 kg and 0.5 kg which are placed 22m apart on a horizontal surface (mu = 0.5) are acted uponby two forces of magnitude 3 Neach as shown in figure in time t = 0 Then the time t at which they collide with each other is B and C [...]
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B and C is 1/2. the maximum value of mass of block D so that the blocks A ,
B and C move without slippping over each other is ,
B and C of equal mass m are placed one over the other on a smooth horizontal ground as shown in figure. Coefficient of friction between any two blocks of A ,
Three blocks A ,