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If for a particle position x ∝ t2., then : (1) velocity is constant(2) acceleration is constant(3) acceleration is variable (4) none. |
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Answer» Answer is (2) acceleration is constant x ∝ t2 ⇒ x = kt2. ⇒ ν = dx/dt = 2kt and a = dν/dt = 2k = const. |
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