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**smmmc** 1)The gravitational force between two objects, F(N), is given by the formula

F = 6.67 × 10^−11m1m2/ r^ 2

where m1 and m2 are the mass (in kilograms) of each object and r (in metres) is the distance

between them.

A)The gravitational force between a planet and an object 6.4 × 106 m away from the

centre of the planet is found to be 2.4 × 104 N. If the object has a mass of 1500 kg, calculate the approximate mass of the planet, giving the answer in standard form (two

significant figures).