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erastova [34]
3 years ago
11

A dragster takes off from rest and crosses the finish line 320 m away. If the dragster is able to accelerate at 10LaTeX: \frac{m

}{s^2}m s 2 then how long does it take to finish?
Physics
2 answers:
Ber [7]3 years ago
4 0

Answer:

t = 8 s

Explanation:

Rasek [7]3 years ago
3 0

Answer:

t = 8 s

Explanation:

In order to find the time taken by the dragster we will use equations of motion. Here, we will use second equation of motion:

s = Vi t + (1/2)at²

where,

s = distance covered = 320 m

Vi = Initial Velocity = 0 m/s (Since, dragster starts from rest)

t = time taken = ?

a = acceleration of dragster = 10 m/s²

Therefore,

320 m = (0 m/s)t + (1/2)(10 m/s²)t²

t² = (320 m)(2)/(10 m/s²)

t = √(64 s²)

<u>t = 8 s</u>

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Answer:

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Explanation:

The change in length on an object due to rise in temperature is given by the following equation of linear thermal expansion:

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Therefore,

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