BriseisJ
contestada

If a 20 gram bird qnd a 0.001 gram mosquito are moving at the same speed, which has a higher kinetic energy? Why?

Respuesta :

the formula for kinetic energy = 1/2*mass*velocity^2
so if the speed (velocity) is the same, the mass is the effecting factor hence the larger the mass the more kinetic energy it has.
the bird has more

Answer:

Bird's kinetic energy is more than mosquito.

Explanation:

It is given that,

Mass of the bird, m₁ = 20 gm = 0.02 kg

Mass of the mosquito, [tex]m_2=0.001\ gm=10^{-6}\ kg[/tex]

Both have same speed. Kinetic energy of an object is given by :

[tex]E_k=\dfrac{1}{2}mv^2[/tex]

Kinetic energy of an object is directly proportional to its mass. As the mass of the bird is more as compared to the mass of mosquito. So, the kinetic energy of the bird is more.