An apple of mass `0.25` kg falls from a tree . What is the acceleration of the apple towards the earth ? Also calculate the acceleration of the earth towards the apple . Mass of the earth = `5.983 xx 10^(24)` kg , Radius of the earth = `6.378 xx 10^(6)` m and G = `6.67 xx 10^(-11)Nm^(2) kg^(-2)`

A mango of mass 0.3 kg falls from a tree. Calculate the acceleration of the mango towards the earth. Also calculate the acceleration of the earth towards the mango. Take, Mass of the earth = 5.983 xx 10^(24) kg Radius of the earth = 6.378 xx 10^(6) m G = 6.67 xx 10^(-11) Nm^(2) kg^(-2)

Calculate the force of gravitation due to earth on a ball of 1 kg mass lying on the ground.(Mass of earth =6xx10^(24) kg Radius of earth =6.4xx10^(3) km and G=6.7xx10^(-11)Nm^(2)/Kg^(2)

Find the escape velocity of a body from the earth. [M (earth ) = 6 xx 10^(24) kg, R ( earth) = 6.4 xx 10^(6) m. G = 6.67 xx 10^(-11) N.m^(2)//kg^(2)]

Calculate the angular momentum of the earth rotating about its own axis. Mass of the earth = 5.98 xx 10^(27) kg, mean radius of the earth =6.37 xx 10^(6)m,M.I of the earth = (2)/(5)MR^(2) .

What is the force of gravity on a body of mass 150 kg lying on earth (Mass of earth =6 xx 10^(24) kg Radius of earth = 6 .4 xx 10^(6) m G= 6 .7 xx 10-11 Nm^2//kg^2)

Calculate the gravitational force due to the earth on mahendra who has mass of 75kg. [mass of earth =6xx10^24 kg " Radius of the earth " = 6.4xx10^6m , " Gravitational constant " (G) = 6.67xx10^(-11) Nm^2//kg^2 ]

A body is projected vertically upwards from the surface of the Earth so as to reach a height equal to the radius of the Earth. Neglecting resistance due to it, calculate the initial speed which should be imparted to the body. Mass of Earth = 5.98 xx 10^(24) kg , Radius of Earth = 6400 km , G = 6.67 xx 10^(-11) Nm^(2) kg^(-2) .

Calculate the mass and density of the earth. Given that Gravitational constant G = 6.67 xx 10^(-11) Nm^(2)// kg^(2) , the radius of the earth = 6.37 xx 10^(6) m and g = 9.8 m//s^(2) .

A rocket is fired vertically with a speed of 5 kms^(-1) from the earth's surface. How far from the earth does the rocket go before returning to the earth ? Mass of earth= 6.0xx10^(24) kg, mean radius of the earth = 6.4xx10^(6) m, G= 6.67xx10^(-11)Nm^(2)Kg^(-2).