Starting from rest,due to the gravitational ofrce of the Earth i.e.733 N,What is the speed of Mahendra after 1 second?If his mass is 75 kg.

Answer the following questions : Compare the gravitational force on a body of mass 1 kg due to the earth with the force on the same body due to another body of mass 1 kg at a distance of 1m from the first body. (Mass of the earth = 6xx10^24 kg, radius of the earth= 6400 km)

A body weighs 81 N on the surface of the earth. What is the gravitational force on it due to earth at a height equal to half the radius of the earth from the surface ?

The mass of the earth is 6xx10^2 4kg.The distance between the Earth and the sun is 1.5xx10^11m.If the gravitational force between the two is 3.5xx10^22 N, What is the mass of the sun? g =6.7xx10^-11Nm^2//kg^2 .

Solve the following examples / numerical problems: The mass of the earth is 6xx10^24 kg. The distance between the earth and the sun is 1.5xx10^11m. If the gravitational force between the two is 3.5xx 10^22 N, what is the mass of the Sun ? ( use G =6.7xx 10^-11 Nm^-2kg^-2)

What is the gravitational potential due to the Earth at a point which is at a height of 2RE above the surface of the Earth, Mass of the Earth is 6xx10^24 kg, radius of the Earth = 6400 km and G = 6.67xx10^(-11) Nm^2 kg^(-2) .

A ball is dropped from a highly raised platform at t=0 starting from rest. After 6 second another ball is thrown downwards from the same platform with a speed v. The two balls meet at t=18 s. What is the value of v? (Take g=10 m/s^2 )

Solve the following examples / numerical problems: Find the magnitude of the gravitational force between the Sun and the earth.( Mass of the Sun =2xx10^30 kg, mass of the earth = 6xx10^24 kg and the distance between the centres of the Sun and the earth = 1.5xx 10^11 m, G =6.67 xx10^-11 N-m^2 /kg^2 ).

A truck of mass 5 tons is travelling on a horizontal road with 36 km hr^-1 stops on travelling 1 km after its engine fails suddenly. What fraction of its weight is the frictional force exerted by the car of mass 1 ton i.e., car moving with same speed stops in similar distance, how much will the fraction be?

A body starts from rest with uniform acceleration. If its velocity after n second is v, then its displacement in the last two seconds is