A rock thrown straight up takes 4.2 s to reach its maximum height what was its initial velocity
1 answer:
Consider the upward direction of motion as positive and downward direction of motion as negative.
a = acceleration due to gravity in downward direction = - 9.8
v₀ = initial velocity of rock in upward direction = ?
v = final velocity of rock at the highest point = 0
t = time to reach the maximum height = 4.2 sec
Using the kinematics equation
v = v₀ + a t
inserting the values
0 = v₀ + (- 9.8) (4.2)
v₀ = 41.2
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<h3>What is atom?</h3>An atom is the smallest unit of matter, consisting of the positively charged nucleus and the electrons which move around it. The atom can not be divided further.
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Answer:
The value is
Explanation:
From the question we are told
The pipe diameter at location 1 is
The velocity at location 1 is
The diameter at location 2 is
Generally the area at location 1 is
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Generally the area at location 1 is
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Generally from continuity equation we have that
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