Find the total energy of a body of 5 kg mass , which is at a height of 10 m from the earth and falling downwards straightly with a velocity of 20 m/s (Take the acceleration due to gravity as `10m//s^(2)` )

Taking the value of the acceleration due toj gravity as 10 m s^(-2) , Find its value in km h^(-2).

Find the energy possessed by a bird of 5 kg moving at a constant height of 10 m from the ground with a speed of 2 m s^(-1) . (Take g = 10 m s^(-2) )

A bird of mass 1.23 kg is able to haver by imparting a downward velocity of 10 m//s uniformly to air of density rho kg//m^(3) over an effective area 0.1m^(2) the acceleration due to gravity is 10m//s^(2) then the magnitude of rho in kg//m^(3)

A body of mass 4kg, is taken from a height of 5 m to a hegiht 10m. Find increase in potential energy.

A mass of 2 kg initially at a height of 1.2 m above an uncompressed spring with spring constant 2 xx 10^4 N/m , is released from rest to fall on the spring. Taking the acceleration due to gravity as 10 m//s^2 and neglecting the air resistance , the compression of the spring in mm is

A body of mass 2 kg is dropped from rest from a height 20 m from the surface of Earth. The body hits the ground with velocity 10 m/s, then work done: (g=10m//s^(2))

A body of mass 2 kg is dropped from rest from a height 20 m from the surface of Earth. The body hiys the ground with velocity 10 m/s, then work done (g=10m//s^(2))

A ball of mass 0.2kg is thrown from a height of 1m and with an initial velocity of sqrt10 m //s at an angle of 45^(@) with the horizontal. Assuming, acceleration due to gravity g =10m//s ^(2), ten modulus of momentum increment during the total time of motion in kg m/s is

A body of mass 5 kg is taken a height 5 m to 10 m .Find the increase in its potential energy (g=10 m s^(-2) )