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VARVARA [1.3K]
3 years ago
9

Speed with direction is called

Physics
1 answer:
Naddika [18.5K]3 years ago
7 0
Velocity
if you change direction, say turn around, so does your velocity
an increase in velocity is called accelleration
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Suppose an automobile has 2000-joules of kinetic energy. when it moves at twice the speed, what will be its kinetic energy? what
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Answer:

K.Eₓ = 4 K.E

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Th formula for the kinetic energy of a body is given as follows:

K.E = \frac{1}{2}mv^2\\   ---------------equation (1)

where,

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then,

K.E_{x} = \frac{1}{2}mv_{x}^2\\K.E_{x} = \frac{1}{2}m(2v)^2\\K.E_{x} = 4\frac{1}{2}mv^2\\

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using equation (1):

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