if elevator goes up at 3.125 m/s2 for 4.0 seconds what is
a. final speed in meters per second ?
b. final speed in miles per hour ?

Question

if elevator goes up at 3.125 m/s2 for 4.0 seconds what is 
a. final speed in meters per second ?
b. final speed in miles per hour ?

anonymous · Answer

a. 3.125 * 4 =12.5m/s
if i'm not mistaken

anonymous · Answer

^^
that's right assuming zero initial velocity.

anonymous · Answer

b. $$12\times1000\div60\times1\div0.62\times1\div60$$ =5.378mile/hour
is it anwar?
o.62 = 1km
1km=1000m

anonymous · Answer

since we have the following formula:
a)$$\nu=\nu_i+at \implies v=0+(3.125)(4)=12.5 m/s$$
b)$$1 meter = 0.62\times10^{-3} miles, 1 hour =3600 \sec$$
 the rest is trivial

anonymous · Answer

anwar,why dont u help me solve my differential equation problem..... ^^"
if that doesnt bother u

anonymous · Answer

I hope it's an easy one, because it's already my bed time :(

anonymous · Answer

i've already post it