Kinetic Energy

If you could accelerate a proton $(\mathrm{m}=1.67\times {10}^{-27} \mathrm{kg})$ to a speed of $0.95 \mathrm{c}$. What would be its kinetic energy?

If a man speeds up by $1 \mathrm{m}/\mathrm{s}$, his kinetic energy increases by $44\%$. His original speed in $\mathrm{m}/\mathrm{s}$ is 

A bullet of mass $55 \mathrm{g}$ is moving with a velocity of $2400 \mathrm{km}/\mathrm{h}$, it penetrates $10 \mathrm{cm}$ into a wall before coming to rest. Calculate the K.E of the bullet (i) before it hit the wall. (ii) after it stops. (iii) Calculate the force exerted on the bullet by the wall.

When mass and speed are doubled the $\mathrm{K}.\mathrm{E}.$ increases

A car starts from rest and moves on a surface with uniform acceleration. Draw the graph of kinetic energy versus displacement. What information you can get from that graph?

Is there any net work done by external forces on a car moving with a constant speed along a straight road?

An object of $40 \mathrm{kg}$ mass is moving with $5 \raisebox{1ex}{$\mathrm{m}$}\!\left/ \!\raisebox{-1ex}{$\mathrm{s}$}\right.$ velocity. Now force is applied on the object such that its velocity increases to $10 \raisebox{1ex}{$\mathrm{m}$}\!\left/ \!\raisebox{-1ex}{$\mathrm{s}$}\right.$. Calculate the work done by the force in joules.

The momentum of a body is increased by $25\mathrm{\%}$. The kinetic energy is increased by about $56\%$.

In the non-relativistic regime, if the momentum is increased by $100\%,$ the percentage increase in kinetic energy is (in $\%$)

Which account is debited when cash is withdrawn from the bank for office use?

Which tense is used in the sentence: 'She has visited France twice.'

Which tense is used in the following sentence: 'They are playing football.'

Identify the tense used in this sentence: 'He had been working for three hours before you arrived.'

Which tense is used in the sentence: 'She will have finished her work by tomorrow'?

Which determiner correctly completes this sentence: 'I have ___ idea about the new project'?

Which scheme aims to provide skill development training to youth to foster entrepreneurship?

What does the acronym IUCN stand for?

Which of the following factors typically influence the choice of sources of funds for a business?

Which Article of the Indian Constitution describes the composition of the Gram Sabha?

Which source of funds involves selling company shares to the public?