Chapter 7 – Work, Energy and Power
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The angular velocity of rotation of star (of mass M and radius R) at which the star start to escape from its equator is
17
Oct
The angular velocity of rotation of star (of mass M and radius R) at which the star start to escape from its equator is The angular velocity of rotation of star (of mass M and radius R) at which the star start to escape from its equator is October 17, 2020 Category: AIIMS Last 24 [...]
A body of mass m1 collides elastically with another body of mass m2 at rest. If the velocity of m1 after collision is 2/3 times its initial velocity, the ratio of their masses is :
17
Oct
A body of mass m1 collides elastically with another body of mass m2 at rest. If the velocity of m1 after collision is 2/3 times its initial velocity, the ratio of their masses is : A body of mass m1 collides elastically with another body of mass m2 at rest. If the velocity of m1 [...]
With what minimum speed v must a small ball should be pushed inside a smooth vertical tube from a height h so that it may reach the top of the tube? Radius of the tube is R.
17
Oct
With what minimum speed v must a small ball should be pushed inside a smooth vertical tube from a height h so that it may reach the top of the tube? Radius of the tube is R. With what minimum speed v must a small ball should be pushed inside a smooth vertical tube from [...]
A ball impinges directly on a similar ball at rest. The first ball is brought to rest by the impact. If half of the kinetic energy is lost by impact, the value of coefficient of restitution is
17
Oct
A ball impinges directly on a similar ball at rest. The first ball is brought to rest by the impact. If half of the kinetic energy is lost by impact, the value of coefficient of restitution is A ball impinges directly on a similar ball at rest. The first ball is brought to rest by [...]
A body moves from rest with a constant acceleration Which one of the following graphs represents the variation of its kinetic energy K with the distance travelled x ?
17
Oct
A body moves from rest with a constant acceleration Which one of the following graphs represents the variation of its kinetic energy K with the distance travelled x ? A body moves from rest with a constant acceleration Which one of the following graphs represents the variation of its kinetic energy K with the distance [...]
If the linear momentum of a body is increased by 50 %, the Kinetic energy will be increased by
17
Oct
If the linear momentum of a body is increased by 50 %, the Kinetic energy will be increased by If the linear momentum of a body is increased by 50 % the Kinetic energy will be increased by October 17, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions [...]
A body of mass 2 kg is thrown up vertically with a kinetic energy of 490J. The height at which the kinetic energy of the body becomes half of the original value is?
17
Oct
A body of mass 2 kg is thrown up vertically with a kinetic energy of 490J. The height at which the kinetic energy of the body becomes half of the original value is? A body of mass 2 kg is thrown up vertically with a kinetic energy of 490J. The height at which the kinetic [...]
A heavy truck moving with a velocity of 60 kmh^−1collides with a light drum at rest. If the collision be elastic, then the velocity of the drum immediately after collision will be
17
Oct
A heavy truck moving with a velocity of 60 kmh^−1collides with a light drum at rest. If the collision be elastic, then the velocity of the drum immediately after collision will be A heavy truck moving with a velocity of 60 kmh^−1collides with a light drum at rest. If the collision be elastic then the [...]
A block of mass 10kg is moving in x-direction with a constant speed of 10m/s. it is subjected to a retarding force F=−0.1xJ/m. During its travel from x=20m to x=30m. Its final kinetic energy will be .
17
Oct
A block of mass 10kg is moving in x-direction with a constant speed of 10m/s. it is subjected to a retarding force F=−0.1xJ/m. During its travel from x=20m to x=30m. Its final kinetic energy will be . A block of mass 10kg is moving in x-direction with a constant speed of 10m/s. it is subjected [...]
If potential energy is given by U = r^2/a − r/b . Then find out maximum force. (Given a=2, b=4).
17
Oct
If potential energy is given by U = r^2/a − r/b . Then find out maximum force. (Given a=2, b=4). B(4 If potential energy is given by U = r^2/a − r/b . Then find out maximum force. (Given a=2 October 17, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry [...]