Recent content by SherazSiddiqu

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    Gravatational Potential Energy Question

    Homework Statement How much energy is required to move a satellite from an altitude of 1RE to 3RE? Homework Equations 1RE= 1 x Radius of the Earth The Attempt at a Solution I tried to find the the GPE of the oject but its not working.
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    Calculating Projectile Motion: Distance of Cannonball to Black Pearl

    Captain Jack Sparrow shoots a cannonball at the black pearl which is located off the cliff that is 100m high. The cannon ball leaves the cannon at 50m/s at 30° to the horizon and hits the Black Pear(the ship) directly. How far is the Black Pearl(the ship) from the cliff? Please help thanks.