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Norma-Jean [14]
3 years ago
11

A car with an initial speed of 31.4 km/h accelerates at a uniform rate of 1.2 m/s2 for 1.3 s. What is the displacement of the ca

r during this time? Select the most appropriate choice
Physics
1 answer:
Kaylis [27]3 years ago
5 0

Answer:

21.5 m

Explanation:

A car has an initial speed of 31.4 km/hr

Convert to m/s

= 31.4 × 1000/3600

= 31,400/3600

= 8.722 m/s

Acceleration = 1.2 m/s^2

Time= 1.3 seconds.

Therefore the displacement can be calculated as follows

S= 8.722 × 1.3 + 1/2 × 1.2 × 1.3^2

= 11.34 + 1/2 × 20.28

= 11.34 + 10.14

= 21.5 m

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Explanation:

Range in projectile motion can be defined as the horizontal distance traveled by an object.

An example of range would be the horizontal distance a soccer ball moves between being kicked and touching the ground again.

4 0
3 years ago
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7 0
3 years ago
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228 88Ra ^{228}_{\ 88}{\rm Ra} then decays through a series of beta-minus decays; eventually, another isotope of thorium,
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Explanation:

Hope this helps

have a great day

~Zero

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