physics work an energy ques
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K.E = 0.5mv²
1.
K.E ∝ m
If mass is tripled then kinetic energy is also tripled
∴ New Kinetic energy = 3 × 25 J = 75 J
2.
K.E ∝ v²
If velocity is doubled then kinetic will become 4 times that of initial.
∴ New kinetic energy = 4 × 25 J = 100 J
1.
K.E ∝ m
If mass is tripled then kinetic energy is also tripled
∴ New Kinetic energy = 3 × 25 J = 75 J
2.
K.E ∝ v²
If velocity is doubled then kinetic will become 4 times that of initial.
∴ New kinetic energy = 4 × 25 J = 100 J
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