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3 years ago

Car A has twice the mass of Car B; both travel at the same speed. Compared to Car B. Car A has:

Physics

2 answers:

krek1111 [17]3 years ago

4 0

Answer:

Car A has twice the energy of car B.

Explanation:

The kinetic energy of an object is given by :

$K=\dfrac{1}{2}mv^2$

Where

m is the mass

v is the speed of the object

Car A has twice the mass of Car B. Both travel at the same speed i.e.

$m_A=2m_B$

So,

$\dfrac{K_A}{K_B}=\dfrac{(1/2)m_Av^2}{(1/2)m_Bv^2}\\\\=\dfrac{2m_B}{m_B}\\\\\dfrac{K_A}{K_B}=2\\\\K_A=2\times K_B$

So, the kinetic energy of car A is twice of the kinetic energy of car B.

goldfiish [28.3K]3 years ago

3 0

Answer:

Car A has twice the energy

Explanation:

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