Work Energy and Power

A block of mass 10 kg is moving in X-direction with a constant speed of 10 ms⁻¹

A block of mass 10 kg is moving in X-direction with a constant speed of 10 ms⁻¹.It is subjected to…

A car moving with a speed of 50 kmh⁻¹ can be stopped by brakes after at least 6 m

A car moving with a speed of 50 kmh⁻¹ can be stopped by brakes after at least 6 m.If the…

A particle moves along the x-axis from x=0 to x=5 m under the influence of a force

A particle moves along the x-axis from x=0 to x=5 m under the influence of a force given by F=7-2…

A particle of mass m is driven by a machine that delivers a constant power k watts

A particle of mass m is driven by a machine that delivers a constant power k watts.If the particle starts…

Assertion(A) :The change in kinetic energy of a particle is equal to the work done

Assertion(A) :The change in kinetic energy of a particle is equal to the work done on it by the net…

A particle free to move along X-axis has potential energy given as U(X) =k(1-e⁻ˣ²)

A particle free to move along X-axis has potential energy given as U(X) =k(1-e-ˣ²),where k is a positive constant of…

A high altitude, a body explodes at rest into two equal fragments with one fragment

A high altitude, a body explodes at rest into two equal fragments with one fragment receiving horizontal velocity of 10…

A small block of super dense material has mass 3 x 10²⁴ kg.It is situated at a height

A small block of super dense material has mass 3 x 10²⁴ kg.It is situated at a height h(

Three objects A,B and C are kept in a straight line on a frictionless horizontal surface

Three objects A,B and C are kept in a straight line on a frictionless horizontal surface.These have masses m,2m and…

A uniform force of (3i+j) Nacts on a particle of mass 2 kg.Hence the particle is displaced

A uniform force of (3i+j) N acts on a particle of mass 2 kg.Hence the particle is displaced from position…