The masses of scooter and bike are in the ratio 2:3 but both are moving with same speed of 108 km/hr. Compute the ratio of their kinetic energy
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Answer:
ke=1\2mv2
Explanation:
ke1\ke2=m1\m2
m1\m2=2;3
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Answer
Let the mass of scooter (m₁) be 2y and mass of bike(m₂) be 3y, then
speed of bike and scooter = 108 km/h = 30 m/s
Kinetic energy of scooter/ kinetic energy of bike =
=1/2 x m₁ x v² / 1/2 x m₂ x v²
= m₁/m₂
= 2y / 3y
= 2/3
= 2 : 3
∴ The ratio of kinetic energy of scooter to bike is 2 : 3.
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