a body of mass 80kg is moving with speed of 20m/s . find the kinetic energy.
Answers
Answered by
0
Answer:
Given , Mass of object, m=10 kg
Velocity of object, v=20ms
−1
Initial Kinetic energy, K
1
=
2
1
×10×20
2
=2000 J
Now, Final mass, m
2
=20 kg
Final Velocity, v
2
=10m/s
Final Kinetic energy, K
2
=
2
1
×20×10
2
=1000 J
Required Ratio =
K
2
K
1
=
1000
2000
=2:1
Answered by
1
Answer:
16000j.
Explanation:
Mass of the object = 80kg.
Velocity of the object = 20m/s.
Kinetic energy = ?
K.E = 1/2 × mv^2.
So,
K.E = 0.5×80×20×20.
= 16000 Kgm/s
= 16000j
I HOPE IT'S USEFUL.
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