a car accelerates from rest at 3 m / s^2 along a straight road. how far has the car travelled after 4 s
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Answer:
24 m
Explanation:
The motion of the car is a uniformly accelerated motion (=at constant acceleration), therefore we can find the distance covered by using the following suvat equation:
Answer:
24 m
Explanation:
The motion of the car is a uniformly accelerated motion (=at constant acceleration), therefore we can find the distance covered by using the following suvat equation:
[tex]s=ut+\frac{1}{2}at^2[/tex]
where
s is the distance covered
u is the initial velocity
t is the time elapsed
a is the acceleration
For the car in this problem:
u = 0, since the car starts from rest
[tex]a=3 m/s^2[/tex] is the acceleration
t = 4 s is the time elapsed
Therefore, the distance covered is:
[tex]s=0+\frac{1}{2}(3)(4)^2=24 m[/tex]