a car is starting from rest and moves with a constant acceleration of 2m/s^2 for 10 sec. calculate the velocity of the car after 10 seconds
Answers
Given:
A car starts from the rest and moves with a constant acceleration of 2 m/s² for 10 secs
To find:
The velocity of the car after 10 seconds
Solution:
The 1st equation of motion is given by,
where
v = final velocity
u = initial velocity
a = acceleration
t = time
According to the question, the car starts from the rest ∴ u = 0
Now, we will substitute the values of u = 0, a = 2 m/s² and t = 10 s in the above equation of motion,
v = 0 + (2 × 10)
⇒ v = 20 m/s
Thus, the velocity of the car after 10 seconds is 20 m/s.
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Velocity of the car after 10 seconds = 20 m/s
Explanation:
Given: initial velocity u = 0; acceleration a = 2 m/s²; t = 10s
Find: Final velocity v.
Solution:
We can find the final velocity of the car using the first equation of motion.
v = u + at
v = 0 + 2 * 10
v = 20 m/s
Velocity of the car after 10 seconds = 20 m/s