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Help projectile motion qs (1 Viewer)

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kony

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the displacement is 50.

therefore, 50 = (1/2)(9.8)t^2

work out t.

then use range = Ux * t.
 
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pascho

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kony said:
the displacement is 50.

therefore, 50 = (1/2)(9.8)t^2

work out t.

then use range = Ux * t.
Click to expand...
thanks man
n
what if the cannon ball is shot in an angle of 45 degree
 
airie

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Just replace uy with 60*cos45 degrees = 30rt2 m/s, and ux 60*sin45 degrees = 30rt2 m/s. Then calculate as kony pointed out.
 
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