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jgvt8weingHuma
jgvt8weingHuma jgvt8weingHuma
  • 14-09-2016
  • Physics
Answered

Toy car in a science experiment covers 1.6 meters in half a second. If a the car travels at a steady speed, how far will it go in 10 seconds? A.. 0.8 m B.. 8 m C. 16 m D. 32 m

Verified Answer :

JcAlmighty
JcAlmighty JcAlmighty
  • 17-09-2016

The answer is D. 32 m.

The simple equation that connects speed (v), time (t), and distance (d) can be expressed as:
\(v= \frac{d}{t}\)         ⇒ \(d=v*t\)

It is given:
\(v = \frac{1.6m}{0.5s} = \frac{1.6m*2}{0.5s*2}= \frac{3.2m}{1s} = 3.2 m/s\)
t = 10 s
d = ?

So:
\(d= v*t=3.2m/s*10s = 32m\)

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