An object of mass 200 g moving with velocity 50 cm/s. What is its kinetic energy?
Answers
Given information :
Mass ( m ) = 200 g
= 200 / 1000 kg
= 0.2 kg
Velocity ( v ) = 50 cm/s
= 50 m / 100 s
= 1 / 2 m/s
= 0.5 m/s
Formula :
Kinetic energy = 1/2 m v²
= 1/2 × 0.2 kg × ( 0.5 m/s )²
= 0.5 × 0.2 kg × 0.25 m²/s²
= 0.025 kg m²/s²
= 0.025 J
ANSWER :
The kinetic energy will be 0.025 J
Thanks for the question !!
Mass of the object (m) = 200 g
= 0.2 kg
velocity of the object (v) = 50 cm/s
= 0.5 m/s
Kinetic energy of the object (K.E) = ?
formula
K.E = 1/2 mv²
= 1/2 × 0.2× 0.5
= 0.5×0.2×0.5
= 0.05 J
∴ K.E = 1/2mv² = 0.05 J
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