Chapter 7 – Work, Energy and Power
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If the momentum of a body is increased by 50%, what would be the percentage increase in its kinetic energy?
24
Aug
If the momentum of a body is increased by 50%, what would be the percentage increase in its kinetic energy? If the momentum of a body is increased by 50% what would be the percentage increase in its kinetic energy? August 24, 2020 Category: Chapter 7 - Work, Energy and Power , NEET Last 32 [...]
Two bodies with kinetic energies in the ratio 4:1 are moving with equal linear momentum. The ratio of their masses is
24
Aug
Two bodies with kinetic energies in the ratio 4:1 are moving with equal linear momentum. The ratio of their masses is Two bodies with kinetic energies in the ratio 4:1 are moving with equal linear momentum. The ratio of their masses is August 24, 2020 Category: Chapter 7 - Work, Energy and Power , NEET [...]
A stone is thrown at an angle of 45∘ to the horizontal with kinetic energy K. The kinetic energy at the highest point is
24
Aug
A stone is thrown at an angle of 45∘ to the horizontal with kinetic energy K. The kinetic energy at the highest point is A stone is thrown at an angle of 45∘ to the horizontal with kinetic energy K. The kinetic energy at the highest point is August 24, 2020 Category: Chapter 7 - [...]
If the kinetic energy of a body is increased by 300%, then percentage change in momentum will be
24
Aug
If the kinetic energy of a body is increased by 300%, then percentage change in momentum will be If the kinetic energy of a body is increased by 300% then percentage change in momentum will be August 24, 2020 Category: Chapter 7 - Work, Energy and Power , NEET Last 32 Years Solved 1988 - [...]
A particle of mass m1 is moving with a velocity v1 and another particle of mass m2 is moving with a velocity v2. Both of them have the same momentum but their different kinetic energies are E1 and E2 respectively. If m1 m2 then
24
Aug
A particle of mass m1 is moving with a velocity v1 and another particle of mass m2 is moving with a velocity v2. Both of them have the same momentum but their different kinetic energies are E1 and E2 respectively. If m1 m2 then A ball of mass 2kg and another of mass 4 kg [...]
A shell is fired from a cannon, it explodes in mid air, its total
24
Aug
A shell is fired from a cannon, it explodes in mid air, its total A shell is fired from a cannon it explodes in mid air its total August 24, 2020 Category: Chapter 7 - Work, Energy and Power , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics [...]
A child is swinging a swing. Minimum and maximum heights fo swing from the earth’s surface are 0.75 m and 2 m respectively. The maximum velocity of this swing is
24
Aug
A child is swinging a swing. Minimum and maximum heights fo swing from the earth’s surface are 0.75 m and 2 m respectively. The maximum velocity of this swing is A child is swinging a swing. Minimum and maximum heights fo swing from the earth's surface are 0.75 m and 2 m respectively. The maximum [...]
A ball of mass 2kg and another of mass 4 kg are dropped together from a 60 feet tall building. After a fall of 30 feet each towards earth, their respective kinetic energies will be in the ratio of
24
Aug
A ball of mass 2kg and another of mass 4 kg are dropped together from a 60 feet tall building. After a fall of 30 feet each towards earth, their respective kinetic energies will be in the ratio of A ball of mass 2kg and another of mass 4 kg are dropped together from a [...]