<span>1.0 m/s
Momentum = mass x velocity
Total Momentum before any collision = total momentum afterwards
4.0 x 3.0= 12 :g x momentum before (x g because using weight)
Afterwards, if the velocity of the two joined is v then we get:
'momentum x g'=12v
so 12v=12
so v=1m/s</span>
Answer:
time = 8.3333 minutes.
Explanation:
distance between earth and sun = 1.5 * 
speed of light = 3* 
convert the distance unit from km to m so we can have uniform units.
distance between earth and sun = 1.5 *
m
distance between earth and sun = 1.5 *
m
speed = distance /time
time = distance / speed
time = 

time =500 sec
time = 500/60 minutes
time = 8.3333 minutes.
Momentum = mass x velocity
12 = 4 x v | ÷ both sides by 4
12 ÷ 4 =v
v= 3 m/s
Answer:
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hope this helps
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Explanation:
Answer:
0.4
Explanation:
Because 3m/s is the initial velocity(u) and 5m/s is the final velocity(v) and time is 5 sec.
So, acceleration = v-u ÷ t
I'm confused