Recent content by Grinter1

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    Average resistance = -5395.5/0.075Average resistance=-71940N

    Could you tell me if i am right please and if I am wrong could you point out any mistakes? A pile-driver hammer of mass 150kg falls freely a distance of 5m to strike a pile of mass 400kg and drives it 75mm in the ground. The hammer doesn't rebound when driving the pile. Calculate the average...
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    What is the Retarding Force on a Golf Ball Plugged in Soft Ground?

    A Golf ball is struck with a high lofted club it falls to Earth under the influence of gravity from a height of 20m. It then plugs into soft ground and comes to rest suddenly without rebound. It then plugs in a depth of 5cm. Find the retarding force which acts on the ball. It has a mass of 45 grams.
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    Calculating Retarding Force on a Golf Ball Struck with a High Lofted Club

    A Golf ball is struck with a high lofted club it falls to Earth under the influence of gravity from a height of 20m. It then plugs into soft ground and comes to rest suddenly without rebound. It then plugs in a depth of 5cm. Find the retarding force which acts on the ball. It has a mass of 45 grams.
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    High School Quick question to wat this equation is?

    I don't understand what U is? Is It to do with hookes law? Is it to do with kinetic energy? U=1/2*k*x^2
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    Mechanical principles using D'lamberts

    First time doing this and i dnt really know how to begin. Homework Statement A pile-driver hammer of mass 150kg falls freely through a distance of 5m to strike a pile of mass 400kg and drives it 75mm into the ground. The hammer does not rebound when driving the pile. Determine the average...