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2 years ago

A toy car moves 8 m in 4 s at the constant velocity. whats the car's velocity?

Physics

2 answers:

KIM [24]2 years ago

8 0

Velocity is calculated by distance and time

v = d/t
v = 8m/4s
v = 2 m/s

It's velocity is 2 meters per second

Lynna [10]2 years ago

7 0

Speed = (distance covered) / (time to cover the distance)

   = (8 m) / (4 s)

   = ( 8 / 4 ) m/s

   = 2 m/s .

That 's the toy car's speed. We can't tell its velocity,
since we have no information about its direction.

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Answer:

Explanation:

a is the acceleration

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Acceleration of the object is given by

$a = g (\sin \theta -\mu \cos \theta)\\\\=10( \sin 30 - 0.4 \cos 30)\\\\=10(0.5-0.3464)\\\\=1.54m/s^2$

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μ = F/N

$=\frac{ma}{mg} \\\\=\frac{3.075}{10} \\\\=0.31$

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Answer:

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