- #1
bearhug
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At the Earth's surface a projectile is launched straight up at a speed of 10.1 km/s. To what height will it rise?
Universal gravitational constant = 6.673e-11 N m^2/kg^2
Radius of the Earth = 6.370e+6 m
Mass of the Earth = 5.980e+24 kg
I know to use the equation U= - (Gm1m2)/ r
but I haven't been getting the right answer
originally I took into consideration that U=1/2mv^2 and set the two equations equal to each other and solved for r which I took to be R+h.
R = radius of Earth and h being the rest of the distance starting from the Earth's surface.
I would appreciate any help on this it's driving me crazy! :uhh:
Universal gravitational constant = 6.673e-11 N m^2/kg^2
Radius of the Earth = 6.370e+6 m
Mass of the Earth = 5.980e+24 kg
I know to use the equation U= - (Gm1m2)/ r
but I haven't been getting the right answer
originally I took into consideration that U=1/2mv^2 and set the two equations equal to each other and solved for r which I took to be R+h.
R = radius of Earth and h being the rest of the distance starting from the Earth's surface.
I would appreciate any help on this it's driving me crazy! :uhh: