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3 years ago

A car is decelerated from 20m/s to 10m/s and covered a distance of 90m.What time did it take to cover the 90m

Physics

1 answer:

Volgvan3 years ago

4 0

Answer:

answer is 6s

Explanation:

first u have to find the 'a'

then 't'

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4 years ago

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Vesnalui [34]

To solve the problem we will simply perform equivalence between both expressions. We will proceed to place your units and develop your internal operations in case there is any. From there we will compare and look at its consistency

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4 years ago

A person observes a firework display for A safe distance of .750 km. Assuming that sound travels at 340 m/s in air what is the t

WINSTONCH [101]

Answer:

t = 2.2 s

Explanation:

Given that,

A person observes a firework display for A safe distance of 0.750 km.

d = 750 m

The speed of sound in air, v = 340 m/s

We need to find the between the person see and hear a firework explosion. let it is t. So, using the formula of speed.

$v=\dfrac{d}{t}\\\\t=\dfrac{d}{v}\\\\t=\dfrac{750\ m}{340\ m/s}\\\\t=2.2\ s$

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3 years ago

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ludmilkaskok [199]

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3 years ago

A car is decelerated from 20m/s to 10m/s and covered a distance of 90m.What time did it take to cover the 90m​

A car is decelerated from 20m/s to 10m/s and covered a distance of 90m.What time did it take to cover the 90m