When a quarterback throws a football, the throwing arm is slowed down to rest during the deceleration phase. of the angular velocity of the throwing arm is 1800 deg/sec at the instant of ball release, then how much would the arm deceleration change if the deceleration was reduced from 2 sec to 0.5 sec

The deceleration is 4 times higher for 0.5sec than for 2 sec.

Explanation:

If the deceleration happens from 1800deg/sec to zero in 2 sec we have that the magnitude is:

if now the time to decelerate is 0.5sec:

The deceleration is now 4 times higher than the previous situation.

0.863333

86%

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c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

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