Advertisements
Advertisements
Question
A ball of mass 1 kg and another of mass 2 kg are dropped from a tall building whose height is 80 m. After, a fall of 40 m each towards Earth, their respective kinetic energies will be in the ratio of ______
Options
`sqrt2` : 1
1 : `sqrt2`
2 : 1
1 : 2
Advertisements
Solution
A ball of mass 1 kg and another of mass 2 kg are dropped from a tall building whose height is 80 m. After, a fall of 40 m each towards Earth, their respective kinetic energies will be in the ratio of 1 : 2.
APPEARS IN
RELATED QUESTIONS
How are the rates of consumption of energy and economic growth connected?
What problems are being faced by the power sector in India?
The potential energy of a system increases, if work is done ______
If the linear momentum of the object is increased by 0.1%, then the kinetic energy is increased by ______
If the potential energy of the particle is `α - β/2x^2`, then the force experienced by the particle is ______
A particle that is constrained to move along the x-axis, is subjected to a force in the same direction which varies with the distance x of the particle from the origin as F(x) = -kx + ax3. Here, k and a are positive constants. For x ≥ 0, the functional form of the potential energy U(x) of the particle is ______
Write the various types of potential energy. Explain the formulae.
Which of the following statements is true for commercial sources of energy?
Compact fluorescent lamp (CFL) consumes ______ percent less power than ordinary bulb?
What are the basic sources of generating power?
