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.

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.

multiply 2kg by latent heat of vap