A truck slows from a velocity of 25 m/s to a stop in 70 m. What was the truck’s acceleration
1 answer:
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Answer:
final temperature will be 0 degree C
Total amount of ice will be
total amount of water
Explanation:
After thermal equilibrium is achieved we can say that
Heat given by water = heat absorbed by ice cubes
so we will have
Heat given by water to reach 0 degree C
heat absorbed by ice cubes to reach 0 degree
so we will have
so here we can say that few amount of water will freeze here to balance the heat
so final temperature will be 0 degree C
Total amount of ice will be
total amount of water
Answer:
a)
b)
Explanation:
Given:
mass of bullet,
compression of the spring,
force required for the given compression,
(a)
We know
where:
a= acceleration
we have:
initial velocity,
Using the eq. of motion:
where:
v= final velocity after the separation of spring with the bullet.
(b)
Now, in vertical direction we take the above velocity as the initial velocity "u"
so,
∵At maximum height the final velocity will be zero
Using the equation of motion:
where:
h= height
g= acceleration due to gravity
is the height from the release position of the spring.
So, the height from the latched position be: