name five dangerous cyclones occurred and write three points about them
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Answer:
vartha
kaja
oki
odisha super cyclone is a dangerous cyclone in india
mysteric 2004 are the five cyclones
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Answer:
Explanation:
Consider an object with mass m, moving with initial velocity u. Let a force F, act on it causing a displacement s, along the direction of force and accelaration. Let the object attain final velocity v. We know F = m x a ------------------------ 1 By position velocity relation we have, V2 = u2 + 2as or s = v2 -u2 / 2a ----------------------------- 2 The work done by the force W = F x s -------------------------------------- 3 Substituting 1 and 2 in 3 W = (m x a) x (v2 - u2/2a) W = m/2 (v2 - u2) W = 1/2 mv2 - 1/2 mu2 -------------------- 4 For an object to be at rest in the beggining, u = 0 Therefore, W = 1/2 mv2 W = Ek ( Ek = kinetic energy) Therefore, Ek = 1/2 mv2
potential energy
Since workdone on the object is equal to mgh, an energy equal to mgh units is gained by the object . This is the potential energy (Ep) of the object. It is clear that the work done is equal to the change in the kinetic energy of an object. If u = 0, the work done will be W =12mv2 W = 1 2 m v 2
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