10 kg की एक वस्तु 2 m/s की गति से चल रही है। वस्तु की गतिज ऊर्जा क्या है?
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20 J
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5 J
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10 J
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40 J
An object of 10 kg is moving with a speed of 2 m/s. The kinetic energy of the object is:
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संकल्पना:
अर्थात KE=1/2mv^2
जहाँ
m = निकाय का द्रव्यमान
v = निकाय का वेग
KE = निकाय की गतिज ऊर्जा
गणना:
दिया गया है कि
वस्तु का द्रव्यमान (m) = 10kg
वस्तु की गति (v) = 2 m/s
गतिज ऊर्जा (K.E) = ½ mv2
= ½ (10)(2)2 ⇒ 20 जूल
वस्तु की गतिज ऊर्जा 20 J है।
CONCEPT:
i.e., KE=1/2mv^2
Where
m = mass of the body
v = velocity of the body
KE = kinetic energy of the body
Calculation:
Given that,
Mass of the object (m) = 10kg
Speed of the object (v) = 2 m/s.
Kinetic Energy (K.E) = ½ mv2.
= ½ (10)(2)2 ⇒ 20 joules.
The kinetic energy of the object is 20 J.