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Imagine a new planet having the same density as that of earth but it is 3 times bigger than the earth in size. If the acceleration due to gravity on the surface of earth is g and that on the surface of the new planet is g’ then
22
Sep
Imagine a new planet having the same density as that of earth but it is 3 times bigger than the earth in size. If the acceleration due to gravity on the surface of earth is g and that on the surface of the new planet is g’ then Mass remaining constant the radius of the [...]
A block of mass M has a circular cut with a frictionless surface as shown. The block rests on the horizontal frictionless surface of a fixed table. Initially the right edge of the block is at x = 0, in a co-ordinate system fixed to the table. A point mass m is released from rest at the topmost point of the path as shown and it slides down. When the mass loses contact with the block, its position is x and the velocity is v. At that instant, which of the following options is/are correct?
22
Sep
A block of mass M has a circular cut with a frictionless surface as shown. The block rests on the horizontal frictionless surface of a fixed table. Initially the right edge of the block is at x = 0, in a co-ordinate system fixed to the table. A point mass m is released from rest [...]
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A block of mass M has a circular cut with a frictionless surface as shown. The block rests on the horizontal frictionless surface of a fixed table. Initially the right edge of the block is at x = 0 ,
in a co-ordinate system fixed to the table. A point mass m is released from rest at the topmost point of the path as shown and it slides down. When the mass loses contact with the block ,
its position is x and the velocity is v. At that instant ,
which of the following options is/are correct? ,
How high can a man be able to jump on a surface of a planet of radius 320 km, but having density same as that of the earth, if he jumps 5 metre on the surface of the earth (radius of the earth= 6400 km).
22
Sep
How high can a man be able to jump on a surface of a planet of radius 320 km, but having density same as that of the earth, if he jumps 5 metre on the surface of the earth (radius of the earth= 6400 km). but having density same as that of the earth How [...]
Consider regular polygons with number of sides n = 3, 4, 5 ….. as shown in the figure. The center of mass of all the polygons is at height h from the ground. They roll on a horizontal surface about the leading vertex without slipping and sliding as depicted. The maximum increase in height of the locus of the center of mass for each polygon is Δ. Then Δ depends on n and h as
22
Sep
Consider regular polygons with number of sides n = 3, 4, 5 ….. as shown in the figure. The center of mass of all the polygons is at height h from the ground. They roll on a horizontal surface about the leading vertex without slipping and sliding as depicted. The maximum increase in height of [...]
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-a). The y-coordinate of the centre of mass of the ink in this drawing is ,
0 ) ,
0) and horizontal line (0 ,
4 ,
A) ,
and each of the two line segments is m. The mass of the ink used to draw the outer circle is 6 m. The coordinates of the centres of the different parts are: outer cicle (0 ,
Consider regular polygons with number of sides n = 3 ,
left circle (-a ,
Look at the drawing given in the figure which has been drawn with ink of uniform line-thickness. The mass of ink used to draw each of the two inner circles ,
right inner circle (a ,
vertical line (0 ,
A block of mass 2 kg is free to move along the x-axis. It at rest and from t = 0 on wards it is subjected to a time-dependent force F(t) in the x direction. The force F(t) varies with t as shown in the figure. The kinetic energy of the block after 4.5 seconds is
22
Sep
A block of mass 2 kg is free to move along the x-axis. It at rest and from t = 0 on wards it is subjected to a time-dependent force F(t) in the x direction. The force F(t) varies with t as shown in the figure. The kinetic energy of the block after 4.5 seconds [...]
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-a). The y-coordinate of the centre of mass of the ink in this drawing is ,
0 ) ,
0) and horizontal line (0 ,
A) ,
and each of the two line segments is m. The mass of the ink used to draw the outer circle is 6 m. The coordinates of the centres of the different parts are: outer cicle (0 ,
left circle (-a ,
Look at the drawing given in the figure which has been drawn with ink of uniform line-thickness. The mass of ink used to draw each of the two inner circles ,
right inner circle (a ,
vertical line (0 ,
Mass remaining constant, the radius of the earth shrinks by 1%. The acceleration due to gravity on the earth’s surface would
22
Sep
Mass remaining constant, the radius of the earth shrinks by 1%. The acceleration due to gravity on the earth’s surface would Mass remaining constant the radius of the earth shrinks by 1%. The acceleration due to gravity on the earth's surface would September 22, 2020 Category: Chapter 10 - Gravitation , MTG NEET Physics , [...]
The ratio of radii of earth to another planet is 2/3 and the ratio of their mean densities is 4/5. If an astronaut can jump to a maximum height of 1.5m on the earth, with the same effort, the maximum height he can jump on the planet is
22
Sep
The ratio of radii of earth to another planet is 2/3 and the ratio of their mean densities is 4/5. If an astronaut can jump to a maximum height of 1.5m on the earth, with the same effort, the maximum height he can jump on the planet is the maximum height he can jump on [...]
Taking the radius of the earth to be 6400 km, by what percentage will the acceleration due to gravity at a height of 100 km from the surface of the earth differ from that on the surface of the earth ?
22
Sep
Taking the radius of the earth to be 6400 km, by what percentage will the acceleration due to gravity at a height of 100 km from the surface of the earth differ from that on the surface of the earth ? by what percentage will the acceleration due to gravity at a height of 100 [...]
The height at which, the acceleration due to gravity decreases by 36% of its value on the surface of the earth is, ( the radius of the earth is R)
22
Sep
The height at which, the acceleration due to gravity decreases by 36% of its value on the surface of the earth is, ( the radius of the earth is R) ( the radius of the earth is R) the acceleration due to gravity decreases by 36% of its value on the surface of the earth [...]
A body weighs 72 N on the surface of the earth. What is the gravitational force on it due to the earth at a height equal to half the radius of the earth from the surface ?
22
Sep
A body weighs 72 N on the surface of the earth. What is the gravitational force on it due to the earth at a height equal to half the radius of the earth from the surface ? A body weighs 72 N on the surface of the earth. What is the gravitational force on it [...]