Recent content by SAHM1500

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    Bullet hits the ground on its return

    Please can anybody help me!
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    Bullet hits the ground on its return

    Yes i did 2.12 .. I proved *the equations*!
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    Bullet hits the ground on its return

    this is may be more clear. thanks.
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    Bullet hits the ground on its return

    V^2=Ae^-2kx - g/k (upward motion) V^2=g/k - Be^2kx (downward motion) Use the above result to show that , when the bullet hits the ground on its return, the speed will be equal to the expression Vo Vt / (Vo^2 + Vt^2)^0.5 In which Vo is the initial upward speed and Vt= (mg/C2)^0.5=...
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    Prove thatd d/dt[ r · ( v × a ) ] = r · ( v × a ̇ )

    Homework Statement 4. Prove that Prove thatd d/dt[ r · ( v × a ) ] = r · ( v × a ̇ ) Homework Equations The Attempt at a Solution I do know how can I start. i feel confuse! please help me