A 51 G Steel Ball Is Released from Rest and Falls

question 1

Multiple Choice

A 51 g steel ball is released from rest and falls vertically onto a steel plate.The ball strikes the plate and is in contact with it for 0.5 ms.The ball rebounds elastically,and returns to its original height.The time interval for a round trip is 3.00 s.In this situation,the average force exerted on the ball during contact with the plate is closest to:

• A)3000 N
• B)1500 N
• C)2490 N
• D)2000 N
• E)3500 N

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Definitions:

Fluid-Filled Sac

A pouch within the body encased by a thin membrane containing liquid; it can occur in various tissues and organs.

Tendons

Fibrous connective tissues that attach muscles to bones, transmitting the force from muscle contraction to move the bone or structure.

Articular Cartilage

A smooth, white tissue that covers the ends of bones where they come together to form joints, helping reduce friction and absorb shock.

Epiphyses

The rounded end of a long bone, which is separated from the main bone by a growth plate during development and later fuses to allow growth in length.