The mass of the earth is 6 x 1024 kg. The distance between the earth and the Sun is 1.5x 1011 m. If the gravitational force between the two is 3.5 x 1022 N, what is the mass of the Sun? (Use G = 6.7 x 10-11 N m2 kg-2) February 4, 2024 by Acche Marks Ans: 1.96 x 1030 kg
The masses of the earth and moon are 6 x 1024 kg and 7.4×1022 kg, respectively. The distance between them is 3.84 x 105 km. Calculate the gravitational force of attraction between the two? (Use G = 6.7 x 10-11 N m2 kg-2) February 4, 2024 by Acche Marks Ans: 2 x 1020 N
An object thrown vertically upwards reaches a height of 500 m. What was its initial velocity? How long will the object take to come back to the earth? Assume g = 10 m/s2 February 4, 2024 by Acche Marks Ans: 100 m/s and 20 s
The mass and weight of an object on earth are 5 kg and 49 N respectively. What will be their values on the moon? Assume that the acceleration due to gravity on the moon is 1/6th of that on the earth. February 4, 2024 by Acche Marks Ans: 5 kg and 8.17 N
The radius of planet A is half the radius of planet B. If the mass of A is MA, what must be the mass of B so that the value of g on B is half that of its value on A? February 4, 2024 by Acche Marks Ans: 2 MA
An object takes 5 s to reach the ground from a height of 5 m on a planet. What is the value of g on the planet? February 4, 2024 by Acche Marks Ans: 0.4 m/s2