Physics
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 [...]
A ball is bouncing down a flight of stairs. The coefficient of restitution is e. The height of each step is d and the ball descends one step each bounce. After each bounce it rebounds to a height h above the next lower step. The height is large compared with the width of step so that the impacts are effectively head-on. Find the relationship between h and d.
17
Oct
A ball is bouncing down a flight of stairs. The coefficient of restitution is e. The height of each step is d and the ball descends one step each bounce. After each bounce it rebounds to a height h above the next lower step. The height is large compared with the width of step so [...]
A body of mass 5 kg moving with a speed of 1.5 m/s on a horizontal smooth surface collides with a nearly weightless spring of force constant k= 5 N/m. The maximum compression of the spring would be
17
Oct
A body of mass 5 kg moving with a speed of 1.5 m/s on a horizontal smooth surface collides with a nearly weightless spring of force constant k= 5 N/m. The maximum compression of the spring would be A body of mass 5 kg moving with a speed of 1.5 m/s on a horizontal smooth [...]
A force F acting on an object varies with distance x as shown in the figure. The force is in N and x in m. The work done by the force in moving the object from x=0 to x=6 m is:
17
Oct
A force F acting on an object varies with distance x as shown in the figure. The force is in N and x in m. The work done by the force in moving the object from x=0 to x=6 m is: A force F acting on an object varies with distance x as shown in [...]
A block of mass 2 kg is free to move along the x-axis. It is at rest and from t=0 onwards 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:
17
Oct
A block of mass 2 kg is free to move along the x-axis. It is at rest and from t=0 onwards 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: Maximum [...]
A bullet is fired from a rifle and the rifle recoils then K.E. of rifle is:
17
Oct
A bullet is fired from a rifle and the rifle recoils then K.E. of rifle is: A bullet is fired from a rifle and the rifle recoils then K.E. of rifle is: October 17, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 7 - Work, Energy [...]
A body of mass 10^3 kg moving with a speed 2 ms^−1 collides with a body of mass 15 x 10^3 inelastically and sticks to it. Then loss in KE of the system will be
17
Oct
A body of mass 10^3 kg moving with a speed 2 ms^−1 collides with a body of mass 15 x 10^3 inelastically and sticks to it. Then loss in KE of the system will be A body of mass 10^3 kg moving with a speed 2 ms^−1 collides with a body of mass 15 x [...]