Grade upto college level Mechanics

Four particles having masses m, 2m, 3m and 4m are placed at the four corners of a square of edge a. Find the gravitational force acting on a particle of mass m placed at the centre.

Shane Macguire

12 Years agoGrade upto college level

1 Answer

Aditi Chauhan

12 Years ago

Sol. GM/(R + h)^2 = 6.67 * 10^-11 * 7.4 * 10^22/(1740 + 1000)^2 = 49.358 * 10^11/2740 * 2740 * 10^6 = 49.358 * 10^11/0.75 * 10^13 = 65.8 * 10^-2 = 0.65 m/s^2

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Four particles having masses m, 2m, 3m and 4m are placed at the four corners of a square of edge a. Find the gravitational force acting on a particle of mass m placed at the centre.

Shane Macguire

1 Answer

Aditi Chauhan

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A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.11213141

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