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Annette [7]
2 years ago
10

A car moving south speeds up from 10m/s to 40m/s in 15 seconds what is the cars acceleration

Physics
1 answer:
torisob [31]2 years ago
8 0

The acceleration of the car will be 2m/s².Option A is correct. According to Newton's second law, the eventual effect of all forces applied to a body is its acceleration.

<h3>What is acceleration?</h3>

The rate of change of velocity with respect to time is known as acceleration.

Given data;

Initial velocity,u=10m/s

Final velocity,v=40m/s

Time elapsed,t=15 seconds

To find ;

Acceleration, a

The acceleration when the change in the velocity is observed by the formula as:

\rm a= \frac{v-u}{t}

Substitute the given values:

\rm a= \frac{40-10}{15} \\\\ a=\frac{30}{15} \\\\ a=2 \ m/s^2

The car's acceleration will be 2 m/s².

Hence, option A is correct.

To learn more about acceleration, refer to the link;

brainly.com/question/2437624

#SPJ1

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Read 2 more answers
Two cars traveled equal distances in different amounts of time. Car A traveled the distance in 2 h, and Car B traveled the dista
lions [1.4K]
The answer is 60 mph.

The speed (v) is distance (d) per time (t): v = d/t

Car A:
v1 = ?
t1 = 2 h
d1 = ?
___
v1 = d1/t1
d1 = v1 * t1

Car B:
v2 = ?
t2 = 1.5 h
d2 = ?
___
v2 = d2/t2
d2 = v2 * t2

<span>Two cars traveled equal distances:
d1 = d2
</span>v1 * t1 = v2 * t2

<span>Car B traveled 15 mph faster than Car A:
v2 = v1 + 15


</span>v1 * t1 = v2 * t2
v2 = v1 + 15
________
v1 * 2 = (v1 + 15) * 1.5
2v1 = 1.5v1 + 22.5
2v1 - 1.5v1 = 22.5
0.5v1 = 22.5
v1 = 22.5/0.5
v1 = 45 mph


v2 = v1 + 15
v2 = 45 + 15
v2 = 60 mph
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