Physics

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 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 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 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 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 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 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 A ball of mass 2kg and another of mass 4 kg are dropped together from a [...]

Starting from rest ,a body slides down a 45 degree inclined plane in twice the time it takes to slide down the same distance in the absence of friction .The coefficient of friction between the body and inclined plane is a body slides down a 45 degree inclined plane in twice the time it takes [...]

A heavy uniform chain lies on a horizontal table top. If the coefficient of friction between the chain and the table surface is 0.25, then find the maximum friction of the length of the chain that can hang over one edge of the table. A heavy uniform chain lies on a horizontal table top. If [...]