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# Help me guyz

A shell of mass m is fired from a gun carriage of mass M which is initially at rest but free to roll on a frictionless level track. The muzzle speed of shell is v relative to the gun ,maximum range of shell if gun is inclined at an angle $$\alpha$$ to horizontal

A hammer of mass M falls from a height h repeatedly to drive a pile of mass m into the ground . The hammer makes the pile penetrate into the ground to a distance d in a single blow. Opposition to penetration is given by

Note by Kyle Finch
2 years, 6 months ago

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