Dr. John Paul Stapp was U.S. Air Force officer who studiedthe effects of extreme deceleration on the human body. OnDecember 10, 1954, Stapp rode a rocket sled, acceleratingfrom rest to a top speed of 282 m/s (1015 km/h) in 5.00 s, andwas brought jarringly back to rest in only 1.40 s! Calculate his(a) acceleration and (b) deceleration. Express each inmultiples of g (9.80 m/s2) by taking its ratio to theacceleration of gravity.

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A: Initial velocity=0 Final velocity=12m Time=6sec

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A: Time = 1×10-3 s Speed = 11.5×10-3 km/s

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A: u=Initial velocity=20 km/hv=Final velocity=60 km/ha=Acceleration

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A: The position as a function of time represents the motion of the particle.The position of the…

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Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.