(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

mass=20

V1=0

V2=10ft/sec

t=2 sec

a=5'/sec/sec

x=10ft

I want to show that the force in momentum and in kinetic energy from above data is the same. With the understanding that simple algebra is being superimposed on calculus.

2. Relevant equations

K.E.= integral of force over distance= max=mdv/dt (dx) =1/2mv^2

momentum = integral of force over time = mv

force= K.E./change in distance

force=momentum/change in time

3. The attempt at a solution

K.E.= 1000 lb (ft/sec)^2

momentum=200 lb(ft/sec)

The force from kinetic energy = 1000 lb (ft/sec)^2 /10ft =100 lb

The force from momentum = 200 lb (ft/sec)/2 sec= 100 lb

Same force, correct ?

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Force in kinetic energy/force in momentum =1

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